Document:

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                                                              EXHIBIT 10.1.19.2

                                 FIRST AMENDMENT

         THIS FIRST AMENDMENT dated as of October 8, 1999 (this "Amendment") is
to the Credit Agreement (the "Credit Agreement") dated as of August 3, 1999
among UNITED AUTO GROUP, INC., a Delaware corporation (the "Company"), various
financial institutions (the "Lenders") and CHRYSLER FINANCIAL COMPANY, L.L.C.,
as agent for the Lenders (the "Agent"). Unless otherwise defined herein, terms
defined in the Credit Agreement are used herein as defined in the Credit
Agreement.

         WHEREAS, the parties hereto desire to amend the Credit Agreement and
certain other Loan Documents in certain respects;

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable consideration (the receipt and sufficiency of which are hereby
acknowledged), the parties hereto agree as follows:

         SECTION 1. AMENDMENTS. Effective on (and subject to the occurrence of)
the Amendment Effective Date (as defined below):

         1.1 (a) The following definitions in Section 1.1 of the Credit
Agreement shall be amended and restated in their entireties to read as follows:

                  Commitment means, as to any Lender, such Lender's commitment
         to make Loans, and to issue or participate in LC Guaranties, under this
         Agreement. The initial amount of each Lender's Pro Rata Share of the
         Revolving Commitment Amount and the Acquisition Commitment Amount is
         set forth on Schedule 2.1.

                  Foreign Subsidiary means any Subsidiary of the Company which
         is not incorporated or organized in the United States or in any State
         thereof.

                  Lender - see the Preamble.

                  Letter of Credit means a letter of credit issued by the Issuer
         for the account of the Company pursuant to an LC Reimbursement
         Agreement and in respect of which an LC Guaranty has been issued.

                  Loan Documents means this Agreement, the Notes, the Guaranty,
         the LC Guaranties, the LC Reimbursement Agreements and the Collateral
         Documents.

         (b) The following definitions shall be added to Section 1.1 of the
Credit Agreement, each in its appropriate alphabetical position:

                  Issuer means DaimlerChrysler North America Holding
         Corporation.

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                  LC Guaranty - see Section 2.1.3(a).

                  LC Reimbursement Agreement - see Section 2.1.3(a).

                  Reimbursement Obligation - see Section 2.1.3(c).

                  Young JV Agreement - see Section 9.9.

         (c) The definitions of "Issuing Lender" and "L/C Application" in
Section 1.1 of the Credit Agreement shall be deleted.

         1.2 The lead in paragraph to Section 2.1 of the Credit Agreement shall
be amended and restated to read in its entirety as follows:

                  2.1 Commitments. On and subject to the terms and conditions of
         this Agreement, each of the Lenders, severally and for itself alone,
         agrees to make Loans to, and to issue or participate in LC Guaranties
         for the account of, the Company as follows:

         1.3 Section 2.1.3 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  2.1.3 Letter of Credit Commitment; Reimbursement Obligations.
         (a) Upon written request from the Company, CFC (on behalf of all the
         Lenders) will issue to the Issuer, guaranties, in such form as is
         reasonably satisfactory to CFC, the Issuer and the Company (each
         herein, together with any extensions or renewals thereof, or guaranties
         issued by CFC in substitution therefor from time to time, called an "LC
         Guaranty"), of reimbursement obligations of the Company arising under
         reimbursement agreements in such form as is reasonably satisfactory to
         CFC, the Issuer and the Company (herein, collectively called the "LC
         Reimbursement Agreements" and individually called an "LC Reimbursement
         Agreement") executed by the Company in connection with Letters of
         Credit; provided, however, that CFC shall not issue any LC Guaranty if,
         after giving effect to such issuance, (i) the aggregate Stated Amount
         of all Letters of Credit shall exceed $10,000,000 or (ii) the Revolving
         Outstandings exceed the Revolving Commitment Amount. Each such request
         by the Company for an LC Guaranty shall specify the Stated Amount of
         the proposed underlying Letter of Credit, the beneficiary thereof, the
         proposed date of issuance of such Letter of Credit and such other
         matters as CFC may reasonably require.

                  (b) Upon CFC making any payment under any LC Guaranty, if the
         Company has not reimbursed CFC in full for such payment or disbursement
         by 11:00 A.M., Detroit time, on the date of such payment, or if any
         reimbursement received by CFC from the Company is or must be returned
         or rescinded upon or during any bankruptcy or reorganization of the
         Company or otherwise, each other Lender shall be obligated to pay to
         CFC its Pro Rata Share of such payment (but no such

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         payment shall diminish the obligation of the Company under Section
         2.1.3(c)). Each Lender irrevocably and unconditionally agrees to so pay
         to CFC in immediately available funds the amount of such Lender's Pro
         Rata Share of such payment. If and to the extent any Lender shall not
         have made such amount available to CFC by 2:00 P.M., Detroit time, on
         the Business Day on which such Lender receives notice from CFC of such
         payment (it being understood that any such notice received after noon,
         Detroit time, on any Business Day shall be deemed to have been received
         on the next following Business Day), such Lender agrees to pay interest
         on such amount to CFC forthwith on demand, for each day from the date
         such amount was to have been delivered to CFC to the date such amount
         is paid, at a rate per annum equal to (i) for the first three days
         after demand, the Federal Funds Rate from time to time in effect and
         (ii) thereafter, the Prime Rate from time to time in effect. Any
         Lender's failure to make available to CFC its Pro Rata Share of any
         such payment shall not relieve any other Lender of its obligation
         hereunder to make available to CFC such other Lender's Pro Rata Share
         of such payment, but no Lender shall be responsible for the failure of
         any other Lender to make available to CFC such other Lender's Pro Rata
         Share of any such payment.

                  (c) Notwithstanding any provision herein to the contrary,
         immediately upon the Issuer's presentation of any demand for payment
         under an LC Guaranty, the Company shall be obligated to reimburse CFC
         for such demand, on the date on which CFC honors such demand, in
         immediately available funds equal to the amount of such honored demand
         (such obligations being referred to herein as "Reimbursement
         Obligations"). If all or any part of such demand is not paid by the
         Company when due, such unpaid amount shall bear interest for each day
         during the period from the day of such demand until it shall be paid in
         full at a rate equal to the Prime Rate from time to time in effect (but
         not less than the Prime Rate in effect on the date on which CFC shall
         have honored such demand) plus two percent (2%) per annum; such
         interest shall be payable on demand.

                  (d) The obligation of the Company to reimburse CFC for demands
         made under the LC Guaranties shall be unconditional and irrevocable and
         shall be enforced strictly in accordance with the terms of this
         Agreement under all circumstances, including, without limitation, the
         following:

                  (A) lack of validity or enforceability of the appropriate LC
         Guaranty or Letter of Credit;

                  (B) the existence of any claim, set-off, defense or other
         right which the Company may have at any time against CFC or the Issuer,
         Lender or any other Person, whether in connection with this Agreement,
         the transactions contemplated herein or any unrelated transaction
         (including any underlying transaction between the Company and the
         beneficiary under a Letter of Credit);

                  (D) any draft, demand, certificate or any other document
         presented under an LC Guaranty or a Letter of Credit proving to be
         forged, fraudulent, invalid or insufficient in any respect or any
         statement therein being untrue or inaccurate in any respect;

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                  (E) payment by CFC under an LC Guaranty against a demand which
         does not comply with the terms of such LC Guaranty, provided that such
         payment does not constitute gross negligence or willful misconduct of
         CFC;

                  (F) any adverse change in the condition (financial or
         otherwise) of the Company;

                  (G) any breach of this Agreement by the Company, the Agent,
         CFC or any other Lender;

                  (H)      any other circumstance or happening whatsoever; or

                  (I) the fact that an Event of Default or an Unmatured Event of
         Default shall have occurred and be continuing.

                  (d) As between the Company, the Agent and the Lenders, the
         Company assumes all risks of the acts and omissions of, or misuse of
         any LC Guaranty by, the Issuer or any beneficiary of a Letter of
         Credit. Without limiting the foregoing, neither the Agent, CFC nor any
         other Lender shall be responsible for: (i) the form, validity,
         sufficiency, accuracy, genuineness or legal effect of any document
         submitted by any Person in connection with the application for and
         issuance of a LC Guaranty or Letter of Credit, even if such document is
         proven to be in any respect invalid, insufficient, inaccurate,
         fraudulent or forged; (ii) the validity or sufficiency of any
         instrument transferring or assigning or purporting to transfer or
         assign a LC Guaranty or Letter of Credit or the rights or benefits
         thereunder or proceeds thereof, in whole or in part, which may prove to
         be invalid or ineffective for any reason; (iii) the failure of the
         beneficiary of a Letter of Credit to comply fully with conditions
         required in order to draw thereupon, or the failure of the Issuer to
         comply fully with conditions required in order to demand under a LC
         Guaranty; (iv) errors, omissions, interruptions or delays in
         transmission or delivery of any messages, by mail, cable, telegraph,
         facsimile, telex or otherwise, whether or not they be in cipher; (v)
         errors in interpretation of technical terms; (vi) any loss or delay in
         the transmission or otherwise of any document required in order to make
         a drawing under a Letter of Credit or a demand under a LC Guaranty or
         of the proceeds of either thereof; (vii) the misapplication by the
         Issuer of the proceeds of any demand under a LC Guaranty; and (viii)
         any consequence arising from causes beyond the control of the Agent,
         CFC or any other Lender. None of the above shall affect, impair or
         prevent the vesting of any of the rights or powers hereunder of the
         Agent, CFC or any other Lender.

         1.4 Section 2.3 of the Credit Agreement shall be amended and restated
to read in its entirety as follows: "[Intentionally left blank]."

         1.5 Section 2.5 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

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                  2.5 Certain Conditions. Notwithstanding any other provision of
         this Agreement, no Lender shall have an obligation to make any Loan and
         CFC shall not have any obligation to issue any LC Guaranty, if an Event
         of Default or Unmatured Event of Default exists.

         1.6 Section 6.1(a) of the Credit Agreement shall be amended by deleting
the words "Letters of Credit" where they appear and inserting in lieu thereof
the words "LC Guaranties."

         1.7 Section 7.5 of the Credit Agreement shall be amended by (i)
deleting the words "Letter of Credit" where they appear and inserting in lieu
thereof the words "LC Guaranty" and (ii) deleting the words "Letters of Credit"
where they appear and inserting in lieu thereof the words "LC Guaranties."

         1.8 Section 9.1.9 shall be redesignated as Section 9.1.10 and the
following Section 9.1.9 shall be added to the Credit Agreement:

                  9.1.9 Subordinated Notes. (a) Within 45 days of the end of
         each Fiscal Quarter, the Company shall obtain from its independent
         certified public accountants and furnish to the Agent a letter, in form
         and substance satisfactory to the Agent, stating that such accountants
         have read Section 4.04 of the Series A Subordinated Notes Indenture and
         Section 4.4 of the Series B Subordinated Notes Indenture (and any
         similar provision in any Refinancing Agreement), that such accountants
         have tested the compliance by the Company with such provisions during
         such Fiscal Quarter and concluding that the Company was in compliance
         with such provisions during such Fiscal Quarter or, if the Company was
         not in compliance with any such provision, describing such
         non-compliance in reasonable detail.

                  (b) If in any Fiscal Quarter the sum of the aggregate
         principal amount of all outstanding Loans plus the Stated Amount of all
         Letters of Credit increases by more than $5,000,000, following such
         Fiscal Quarter each borrowing and issuance of a Letter of Credit shall
         (in addition to the conditions imposed by Section 10) be conditioned on
         the receipt by the Agent of a letter, in form and substance
         satisfactory to the Agent, from the independent certified public
         accountants of the Company stating that such accountants have read
         Section 4.04 of the Series A Subordinated Notes Indenture and Section
         4.4 of the Series B Subordinated Notes Indenture (and any similar
         provision in any Refinancing Agreement), that such accountants have
         tested the compliance by the Company with such provisions after giving
         pro forma effect to such borrowing or issuance and concluding that the
         Company is in compliance with such provisions after giving pro forma
         effect to such borrowing or issuance.

         1.9 Section 9.7(j) of the Credit Agreement shall be amended and
restated to read in its entirety as follows:

                  (j) Debt with respect to any Floor Plan Financing provided to
         the Company or any Subsidiary by General Motors Acceptance Corporation,
         BMW Financial Services NA, Inc., Ford

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         Motor Credit Corporation, PRIMUS Automotive Financial Services, Inc.,
         World Omni Financial Corporation (with respect to Toyota make vehicles
         only) or Toyota Motor Credit Corporation or any other Person to whom
         CFC, in its sole discretion, consents;

         1.10 Section 9.8(h) of the Credit Agreement shall be amended and
restated to read in its entirety as follows:

                  (h) Liens on any asset of an Automobile Dealership securing
         Debt permitted by Sections 9.7(j), (k) and (l) (in the case of Debt
         under Sections 9.7(j) and (l), (x) such Liens under agreements entered
         into after the date hereof may attach only to the inventory
         floorplanned by such Debt and proceeds thereof, accounts receivable and
         payment intangibles owing by the relevant Dealer to the manufacturer
         with whom the provider of the financing is affiliated (and, with
         respect to World Omni Financial Corp., owing to Southeast Toyota
         Distributors, Inc.) (and all other rights to payment in which any such
         financing provider could exercise a right of setoff or recoupment) and
         service loaner vehicles manufactured by a manufacturer and financed by
         a financing provider permitted under Section 9.7(j) or (l)
         (collectively, "Permitted Floorplan Collateral") and (y) to the extent
         that such Liens under agreements in existence on the date hereof attach
         to assets in addition to Permitted Floorplan Collateral, such Liens on
         such assets other than Permitted Floorplan Collateral must be
         subordinated to the security interest of the Agent in form and
         substance satisfactory to the Agent (it being understood that no such
         Lien may attach to any Excluded Property)).

         1.11 Clause (i) of the second sentence of Section 9.9 of the Credit
Agreement shall be amended and restated to read in its entirety as follows " (i)
any Subsidiary may pay dividends or make other distributions to the Company or
another Subsidiary."

         1.12 Section 9.13 of the Credit Agreement shall be amended by (i)
deleting the parenthetical phrase in clause (a)(i) thereof and inserting in lieu
thereof the following "(other than Excluded Property and property in which the
Company is prohibited from granting a security interest, pledge or assignment
pursuant to a Permitted Restriction)" and (ii) deleting the first parenthetical
phrase in clause (bi) thereof and inserting in lieu thereof the following
"(other than Excluded Property and property in which such Subsidiary is
prohibited from granting a security interest, pledge or assignment pursuant to a
Permitted Restriction)."

         1.13 Clause (b) of Section 9.17 of the Credit Agreement shall be
amended and restated to read in its entirety as follows "(b) except for
Permitted Restrictions, prohibit the Company or any Subsidiary from granting to
the Agent, for the benefit of the Lenders, a Lien on any of its assets or".

         1.14 Clause (b) of Section 9.19 of the Credit Agreement shall be
amended and restated to read in its entirety as follows:

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                  (b) Investments by the Company in any Subsidiary or by any
         Subsidiary in the Company, or by any Subsidiary in any Subsidiary, by
         way of intercompany loans, advances or guaranties, all to the extent
         permitted by Section 9.7;

         1.15 The following Section 9.22 shall be added to the Credit Agreement:

                  9.22 Amendments to Subordinated Note Indentures. Not solicit
         the consent of any holder of Subordinated Notes to any amendment,
         waiver or modification of any Subordinated Note Indenture (or any
         Refinancing Agreement) unless, concurrently with any other consents
         being solicited, the consent of such holders is solicited to amend
         Section 4.04(ii) of the Series A Subordinated Notes Indenture and
         Section 4.4(ii) of the Series B Subordinated Notes Indenture (and any
         similar provision in any Refinancing Agreement) to increase the maximum
         amount of Debt that can be incurred under the "Senior Credit Facility"
         pursuant to such subsections from $100,000,000 to $250,000,000.

         1.16 The lead in paragraph of Section 10 shall be amended and restated
to read in its entirety as follows:

                  The obligation of each Lender to make its Loans and of CFC to
         issue LC Guaranties is subject to the following conditions precedent:

         1.17 Section 10.1 of the Credit Agreement shall be amended by deleting
the words "the Issuing Lender to issue its initial Letter of Credit" where they
appear and inserting in lieu thereof the words "CFC to issue its initial LC
Guaranty".

         1.18 The lead in paragraph to Section 10.2 of the Credit Agreement
shall be amended and restated to read in its entirety as follows:

                  10.2 Conditions. The obligation (a) of each Lender to make
         each Loan and (b) of CFC to issue each LC Guaranty is subject to the
         following further conditions precedent that:

         1.19 Section 11.1.12 of the Credit Agreement shall be amended and
restated to read in its entirety as follows:

                  11.1.12 Change of Control. A majority of the members of the
         Board of Directors of the Company shall cease to be constituted of (i)
         nominees and designees of Penske Capital Partners, (ii) officers and
         directors of any entity which, directly or indirectly, controls or is
         controlled by or is under common control with Penske Capital Partners
         or (iii) any Person approved by the vote of a majority of the members
         of the Board of Directors of the Company then in office who were at the
         time Persons described in clauses (i) and (ii) above.

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         1.20 The following Section 11.1.13 shall be added to the Credit
Agreement:

                  11.1.13 Securities Purchase Agreement; Put of Stock. Penske
         Capital Partners shall exercise its right to require the Company to
         repurchase the stock of the Company held by Penske Capital Partners
         pursuant to Section 7.2 of the Securities Purchase Agreement.

         1.21 The last two sentences of Section 11.2 of the Credit Agreement
shall be deleted and the following inserted in lieu thereof:

         Any cash collateral delivered hereunder shall be held by the Agent
         (without liability for interest thereon) and applied to Reimbursement
         Obligations. After the expiration or termination of all LC Guaranties,
         such cash collateral shall be applied by the Agent to any remaining
         obligations hereunder and any excess shall be delivered to the Company
         or as a court of competent jurisdiction may elect.

         1.22 Section 12.1(b) of the Credit Agreement shall be amended and
restated in its entirety to read as follows: "[Intentionally left blank]."

         1.23 The last sentence of Section 13.1 of the Credit Agreement shall be
deleted and the following inserted in lieu thereof:

         No provision of this Agreement relating to the rights or duties of CFC
         in its capacity as issuer of LC Guaranties shall be amended, modified
         or waived without the consent of CFC.

         1.24 Section 13.9.1 of the Credit Agreement shall be amended by
deleting the words "the Issuing Lender" where they appear and inserting in lieu
thereof the word "CFC."

         1.25 The Security Agreement shall be amended by (i) adding to Section 1
thereof the following definition in its appropriate alphabetical position

                  Excluded Contracts means (1) the Young JV Agreement, (2) the
         Securities Purchase Agreement and (3) to the extent the grant of a
         security interest or assignment as collateral security to the Agent
         therein is prohibited by a valid and enforceable restriction on the
         grant of a security interest or an assignment as collateral security,
         any franchise, dealer, framework, floor plan financing or similar
         agreement between the Company or any of its Subsidiaries or Affiliates,
         on the one hand, and any automobile manufacturer or any of such
         automobile manufacturer's subsidiaries or affiliates, on the other
         hand.

and (ii) amending and restating clause (y) of the proviso to Section 2 of the
Security Agreement to read in its entirety as follows " (y) all Excluded
Property and Excluded Contracts (but not any proceeds thereof) are excluded from
the foregoing grant."

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<PAGE>   9

         1.26 The Guaranty shall be amended by (i) amending the sixth paragraph
following the paragraph beginning "NOW, THEREFORE" by amending and restating
clause (a) thereof to read in its entirety as follows "(a) retain or obtain a
security interest in any property to secure any of the Liabilities or any
obligation hereunder (subject only to the agreement of the party providing such
security interest)" and (ii) amending the eleventh paragraph following the
paragraph beginning "NOW, THEREFORE" by inserting the phrase ", but subject to
Section 13.9 of the Credit Agreement," immediately preceding the words "assign
or transfer any or all of the Liabilities or any interest therein" where they
appear in such paragraph.

         SECTION 2 REPRESENTATIONS AND WARRANTIES. The Company represents and
warrants to the Agent and the Lenders that (a) the representations and
warranties made in Section 8 of the Credit Agreement are true and correct on and
as of the Amendment Effective Date with the same effect as if made on and as of
the Amendment Effective Date (except to the extent relating solely to an earlier
date, in which case they were true and correct as of such earlier date); (b) no
Event of Default or Unmatured Event of Default exists or will result from the
execution of this Amendment; (c) the execution and delivery by the Company of
this Amendment and the performance by the Company of its obligations under the
Credit Agreement as amended hereby (as so amended, the "Amended Credit
Agreement") (i) are within the corporate powers of the Company, (ii) have been
duly authorized by all necessary corporate action, (iii) have received all
necessary approval from any governmental authority and (iv) do not and will not
contravene or conflict with any provision of any law, rule or regulation or any
order, decree, judgment or award which is binding on the Company or any of its
Subsidiaries or of any provision of the certificate of incorporation or bylaws
of the Company or of any agreement, indenture, instrument or other document
which is binding on the Company or any of its Subsidiaries; and (d) the Amended
Credit Agreement is the legal, valid and binding obligation of the Company,
enforceable against the Company in accordance with its terms, except as
enforceability may be limited by applicable bankruptcy, insolvency or similar
laws affecting the enforcement of creditors' rights generally or by equitable
principles relating to enforceability.

         SECTION 3 EFFECTIVENESS. The amendments set forth in Section 1 above
shall become effective on such date (the "Amendment Effective Date") when the
Agent shall have received (a) a counterpart of this Amendment executed by the
Company and the Required Lenders and (b) each of the following documents, each
in form and substance satisfactory to the Agent:

         3.1 Resolutions. Certified copies of resolutions of the Board of
Directors of the Company authorizing or ratifying the execution, delivery and
performance by the Company of this Amendment, the Amended Credit Agreement and
each other Loan Document contemplated by this Amendment to which the Company is
a party.

         3.2 Incumbency and Signature Certificates. A certificate of the
Secretary or an Assistant Secretary of the Company, certifying the names of the
officer or officers of the Company authorized to sign

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<PAGE>   10

this Amendment and the other Loan Documents contemplated hereby to which the
Company is a party, together with a sample of the true signature of each such
officer.

         3.3 Reaffirmation. A Reaffirmation of Loan Documents in the form
attached hereto executed by each Loan Party other than the Company.

         3.4 Other Documents. Such other documents as the Agent or any Lender
may reasonably request.

         SECTION 4  MISCELLANEOUS.

         4.1 Continuing Effectiveness, etc. As herein amended and as waived by
Section 4.6, the Credit Agreement shall remain in full force and effect and is
hereby ratified and confirmed in all respects. After the Amendment Effective
Date, all references in the Credit Agreement, the Notes, each other Loan
Document and any similar document to the "Credit Agreement" or similar terms
shall refer to the Amended Credit Agreement.

         4.2 Counterparts. This Amendment may be executed in any number of
counterparts and by the different parties on separate counterparts, and each
such counterpart shall be deemed to be an original but all such counterparts
shall together constitute one and the same Amendment.

         4.3 Expenses. The Company agrees to pay the reasonable costs and
expenses of the Agent (including reasonable fees and disbursements of counsel,
including, without duplication, the allocable costs of internal legal services
and all disbursements of internal legal counsel) in connection with the
preparation, execution and delivery of this Amendment.

         4.4 Governing Law. This Amendment shall be a contract made under and
governed by the laws of the State of New York applicable to contracts made and
to be wholly performed within the State of New York.

         4.5 Successors and Assigns. This Amendment shall be binding upon the
Company, the Lenders and the Agent and their respective successors and assigns,
and shall inure to the benefit of the Company, the Lenders and the Agent and the
successors and assigns of the Lenders and the Agent.

         4.6 Waiver. The Required Lenders hereby waive, for a period commencing
on the date hereof and ending on November 8, 1999, any Event of Default arising
solely out of the Company's failure to comply with Section 4.18 of each
Subordinated Notes Indenture.

         4.7. Guaranty of Existing Letters of Credit. The parties hereto agree
that the Letter of Credit Guaranty dated as of October 1, 1999 issued by CFC to
The Bank of Nova Scotia ("BNS") in respect of two standby letters of credit
issued by BNS for the account of the Company in the aggregate stated amount of
$2,121,134 shall for the purposes of the Credit Agreement (as hereby amended) be
an "LC Guaranty" thereunder.

         Delivered as of the day and year first above written.

                                      -10-
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                                         UNITED AUTO GROUP, INC.

                                         By
                                           --------------------------------
                                         Title
                                              -----------------------------

                                         CHRYSLER FINANCIAL COMPANY, L.L.C., as
                                         Agent and as a Lender

                                         By
                                           --------------------------------
                                         Title
                                              -----------------------------

                                      -11-
<PAGE>   12

                                REAFFIRMATION OF
                                 LOAN DOCUMENTS

                                 October 8, 1999

Chrysler Financial Company, L.L.C., as Agent
and the other parties
to the Credit Agreement
referred to below

                       RE: REAFFIRMATION OF LOAN DOCUMENTS

Ladies and Gentlemen:

         Please refer to:

                  1. The Pledge Agreement dated as of October 8, 1999 (the
         "Pledge Agreement") among United Auto Group, Inc. ("UAG"), various of
         its subsidiaries and Chrysler Financial Company, L.L.C., in its
         capacity as Agent (in such capacity, the "Agent");

                  2. The Guaranty dated as of October 8, 1999 (the "Guaranty")
         executed in favor of the Agent and various other parties by all
         subsidiaries of UAG; and

                  3. The Security Agreement dated as of October 8, 1999 (the
         "Security Agreement") among UAG, its subsidiaries and the Agent.

         The Guaranty, the Pledge Agreement, the Security Agreement and the
Credit Agreement referred to below are collectively referred to herein as the
"Loan Documents". Capitalized terms not otherwise defined herein will have the
meanings given in the Credit Agreement referred to below.

         Each of the undersigned acknowledges that the Company, the Lenders and
the Agent have executed the First Amendment (the "Amendment") to the Credit
Agreement dated as of August 3, 1999 (as so amended and as the same may be
further amended, supplemented or otherwise modified from time to time, the
"Credit Agreement").

         Each of the undersigned hereby (i) consents and agrees to the
amendments to the Loan Documents to which such undersigned is a party contained
in the Amendment and (ii) confirms that each Loan Document to which such
undersigned is a party remains in full force and effect after giving effect to
the effectiveness of the Amendment and that, upon such effectiveness, all
references in such Loan Document to the "Credit Agreement" shall be references
to the Credit Agreement as amended by the Amendment.

<PAGE>   13

         The letter agreement may be signed in counterparts and by the various
parties as herein on separate counterparts. This letter agreement shall be
governed by the laws of the State of New York applicable to contracts made and
to be performed entirely within such State.

                                      UAG NORTHEAST, INC.
                                      DIFEO PARTNERSHIP, INC.
                                      DIFEO PARTNERSHIP HCT, INC.
                                      DIFEO PARTNERSHIP SCT, INC.
                                      DIFEO PARTNERSHIP RCT, INC.
                                      DIFEO PARTNERSHIP RCM, INC.
                                      DIFEO PARTNERSHIP VIII, INC.
                                      DIFEO PARTNERSHIP IX, INC.
                                      DIFEO PARTNERSHIP X, INC.
                                      UAG HUDSON, INC.
                                      SOMERSET MOTORS INC.
                                      UAG NORTHEAST BODY SHOP, INC.
                                      UAG NORTHEAST (NY), INC.
                                      UNITED LANDERS, INC.
                                      LANDERS AUTO SALES, INC.
                                      LANDERS UNITED AUTO GROUP NO. 2, INC.
                                      LANDERS UNITED AUTO GROUP, INC.
                                      LANDERS UNITED AUTO GROUP NO. 3, INC.
                                      LANDERS UNITED AUTO GROUP NO. 4, INC.
                                      LANDERS BUICK-PONTIAC, INC.
                                      UNITED AUTO GROUP, INC.
                                      UAG ATLANTA, INC.
                                      UAG DULUTH, INC.
                                      UAG ATLANTA II, INC.
                                      UNITED NISSAN, INC.
                                      UAG ATLANTA III, INC.
                                      PEACHTREE NISSAN, INC.
                                      UAG ATLANTA IV, INC.
                                      UAG ATLANTA IV MOTORS, INC.
                                      UAG ATLANTA V, INC.
                                      CONYERS NISSAN, INC.
                                      UAG ATLANTA VI, INC.
                                      UNITED JEEP CHRYSLER PLYMOUTH OF STONE
                                        MOUNTAIN, INC.
                                      UNITED MAZDA, INC.
                                      UAG TENNESSEE, INC.
                                      UAG WEST, INC.

                                      -2-

<PAGE>   14

                                      SA AUTOMOTIVE, LTD.
                                      SL AUTOMOTIVE, LTD.
                                      SPA AUTOMOTIVE, LTD.
                                      LRP, LTD.
                                      SUN MOTORS, LTD.
                                      SCOTTSDALE MANAGEMENT GROUP, LTD.
                                      SCOTTSDALE AUDI, LTD.
                                      SK MOTORS, LTD.
                                      KMT/UAG, INC.
                                      RELENTLESS PURSUIT ENTERPRISES, INC.
                                      TRI-CITY LEASING, INC.
                                      HT AUTOMOTIVE LTD.
                                      TEMPE MOTORS, INC.
                                      UAG NEVADA, INC.
                                      UAG TEXAS, INC.
                                      UAG TEXAS II, INC.
                                      UAG EAST, INC.
                                      WESTBURY SUPERSTORE, LTD.
                                      WESTBURY NISSAN LTD.
                                      PALM AUTO PLAZA, INC.
                                      FLORIDA CHRYSLER PLYMOUTH, INC.
                                      WEST PALM NISSAN, INC.
                                      WEST PALM INFINITI, INC.
                                      NORTHLAKE AUTO FINISH, INC.
                                      J & S AUTO REFINISHING, LTD.
                                      J&S IMPORTS, INC.
                                      WEST PALM AUTO MALL, INC.
                                      AUTO MALL PAYROLL SERVICES, INC.
                                      AUTO MALL STORAGE, INC.
                                      AMITY AUTO PLAZA, LTD.
                                      AMITY NISSAN OF MASSAPEQUA, LTD.
                                      UAG CAROLINA, INC.
                                      REED-LALLIER CHEVROLET, INC.
                                      MICHAEL CHEVROLET-OLDSMOBILE, INC.
                                      GENE REED CHEVROLET, INC.
                                      UNITEDAUTO DODGE OF SHREVEPORT, INC.
                                      UAG MEMPHIS, INC.
                                      COVINGTON PIKE DODGE, INC.
                                      UAG GRACELAND, INC.
                                      THE NEW GRACELAND DODGE, INC.

                                      -3-

<PAGE>   15

                                      UAG GRACELAND II, INC.
                                      UAG MEMPHIS II, INC.
                                      UAG MEMPHIS III, INC.
                                      UAG MEMPHIS IV, INC.
                                      UAG MEMPHIS V, INC.
                                      UAG KNOXVILLE, INC.
                                      UAG KNOXVILLE II, INC.
                                      UAG-CARIBBEAN, INC.
                                      UAG YOUNG, INC.
                                      DAN YOUNG INC.
                                      DAN YOUNG CHEVROLET INC.
                                      YOUNG MANAGEMENT GROUP, INC.
                                      PARKWAY CHEVROLET, INC.
                                      UAG YOUNG II, INC.
                                      UAG CENTURY MOTORS, INC.
                                      UAG PARAMOUNT MOTORS, INC.
                                      UAG KISSIMMEE MOTORS, INC.
                                      UAG CITRUS, INC.
                                      UAG CLASSIC, INC.
                                      CLASSIC AUTO GROUP, INC.
                                      CHERRY HILL CLASSIC CARS, INC.
                                      CLASSIC OF CHERRY HILL, INC.
                                      CLASSIC MANAGEMENT COMPANY, INC.
                                      CLASSIC CHEVROLET, INC.
                                      CLASSIC ENTERPRISE, INC.
                                      CLASSIC AUTO GROUP HOLDINGS, INC.
                                      CLASSIC IMPORTS, INC.
                                      UNITEDAUTO ENTERPRISE, INC.
                                      UNITED AUTOCARE, INC.
                                      UNITED AUTOCARE PRODUCTS, INC.
                                      UNITEDAUTO FOURTH FUNDING INC.
                                      UNITEDAUTO FIFTH FUNDING INC.
                                      AUTO LEASING CORPORATION
                                      UAG CAPITAL MANAGEMENT, INC.
                                      UAG FINANCE COMPANY, INC.
                                      KMT/UAG, INC.
                                      6725 DEALERSHIP LTD.
                                      CHERRY HILL CLASSIC CARS
                                      CLASSIC MOTOR SALES LLC
                                      D. YOUNG CHEVROLET LLC
                                      DAN YOUNG MOTORS LLC
                                      DAN YOUNG TIPTON LLC
                                      UAG YOUNG AUTOMOTIVE GROUP LLC

                                      -4-

<PAGE>   16

                                      UAG LANDERS, INC.
                                      YOUNG AUTOMOTIVE HOLDINGS LLC

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      DIFEO HYUNDAI PARTNERSHIP
                                      DIFEO NISSAN PARTNERSHIP
                                      DIFEO CHRYSLER PLYMOUTH JEEPEAGLE
                                        PARTNERSHIP
                                      DIFEO LEASING PARTNERSHIP
                                      DIFEO CHEVROLET-GEO PARTNERSHIP
                                      J&F OLDSMOBILE PARTNERSHIP
                                      DANBURY AUTO PARTNERSHIP
                                      FAIR HYUNDAI PARTNERSHIP
                                      FAIR CHEVROLET-GEO PARTNERSHIP
                                      DANBURY CHRYSLER PLYMOUTH PARTNERSHIP
                                      DIFEO TENAFLY PARTNERSHIP
                                      By: DIFEO PARTNERSHIP, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      OCT PARTNERSHIP
                                      By: DIFEO PARTNERSHIP VIII, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -5-
<PAGE>   17

                                      OCM PARTNERSHIP
                                      By: DIFEO PARTNERSHIP IX, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      HUDSON MOTORS PARTNERSHIP
                                      By: DIFEO PARTNERSHIP HCT, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      COUNTY AUTO GROUP PARTNERSHIP
                                      By: DIFEO PARTNERSHIP RCT, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      SOMERSET MOTORS PARTNERSHIP
                                      By: DIFEO PARTNERSHIP SCT, INC.
                                           a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -6-
<PAGE>   18

                                      ROCKLAND MOTORS PARTNERSHIP
                                      By: DIFEO PARTNERSHIP RCM, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      6725 AGENT PARTNERSHIP
                                      By: SCOTTSDALE AUDI, LTD.
                                           a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      SHANNON AUTOMOTIVE, LTD.
                                      By: UAG TEXAS, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      DAN YOUNG TIPTON, LLC
                                      By: DAN YOUNG, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -7-
<PAGE>   19

                                      YOUNG AUTOMOTIVE HOLDINGS, LLC
                                      UAG YOUNG AUTOMOTIVE GROUP, LLC
                                      D. YOUNG CHEVROLET, LLC
                                      By: UAG YOUNG, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      DAN YOUNG MOTORS LLC
                                      By: DAN YOUNG CHEVROLET, INC.
                                        Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      UAG CITRUS MOTORS, LLC
                                      By: UAG CITRUS, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      CLASSIC MOTOR SALES, LLC
                                      CLASSIC ENTERPRISES, LLC
                                      By: UAG CITRUS, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -8-
<PAGE>   20

                                      CLASSIC NISSAN OF TURNERSVILLE, LLC
                                      By: Thomas J. Hessert
                                          Member

                                      ----------------------------------

                                      -9-
<PAGE>   21

                                      SCOTTSDALE JAGUAR, LTD.

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -10-
<PAGE>   22

                                      LANDERS UNITED AUTO GROUP NO. 5, INC.
                                      BPT HOLDINGS, INC.
                                      LANDERS FORD, INC
                                      NATIONAL CITY FORD, INC.
                                      CENTRAL FORD CENTER, INC.
                                      PIONEER FORD SALES, INC.

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

ACKNOWLEDGED AND AGREED
as of the date first written above

CHRYSLER FINANCIAL COMPANY, L.L.C.,
as Agent

By:
   ----------------------------------
Title:
      -------------------------------

                                      -11-<PAGE>   1
                                                              EXHIBIT 10.1.19.3

                                SECOND AMENDMENT

         THIS SECOND AMENDMENT dated as of December 23, 1999 (this "Amendment")
is to the Credit Agreement (as heretofore amended, the "Credit Agreement") dated
as of August 3, 1999 among UNITED AUTO GROUP, INC., a Delaware corporation (the
"Company"), various financial institutions (the "Lenders") and CHRYSLER
FINANCIAL COMPANY, L.L.C., as agent for the Lenders (the "Agent"). Unless
otherwise defined herein, terms defined in the Credit Agreement are used herein
as defined in the Credit Agreement.

         WHEREAS, the parties hereto desire to amend the Credit Agreement in
certain respects;

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable consideration (the receipt and sufficiency of which are hereby
acknowledged), the parties hereto agree as follows:

         SECTION 1 AMENDMENTS. Effective on (and subject to the occurrence of)
the Amendment Effective Date (as defined below):

         1.1      (a) The following definitions in Section 1.1 of the Credit
Agreement shall be amended and restated in their entireties to read as follows:

                  Commitment means, as to any Lender, such Lender's commitment
         to make Loans, and to issue or participate in Letters of Credit, under
         this Agreement. The initial amount of each Lender's Pro Rata Share of
         the Revolving Commitment Amount, the Acquisition Commitment Amount and
         the Term Commitment Amount is set forth on Schedule 2.1.

                  Funded Debt means all Debt of the Company and its
         Subsidiaries, determined on a consolidated basis, excluding (i)
         contingent obligations in respect of Suretyship Liabilities (except to
         the extent constituting Suretyship Liabilities in respect of Debt of a
         Person other than the Company or any Subsidiary), (ii) Hedging
         Obligations, (iii) Debt of the Company to Subsidiaries and Debt of
         Subsidiaries to the Company or to other Subsidiaries and (iv) an amount
         equal to 25% of the Loans outstanding at the time of calculation the
         proceeds of which were used to repurchase, redeem, repay or defease the
         Subordinated Notes.

                  Issuing Lender means CFC in its capacity as the issuer of
         Letters of Credit hereunder and its successors and assigns in such
         capacity.

                  L/C Application means, with respect to any request for the
         issuance of a Letter of Credit, a letter of credit application in the
         form being used by the Issuing Lender at the time of such request for
         the type of letter of credit requested.

<PAGE>   2

                  Lender - see the Preamble. References to the "Lenders" shall
         include the Issuing Lender; for purposes of clarification only, to the
         extent that CFC (or any successor Issuing Lender) may have any rights
         or obligations in addition to those of the other Lenders due to its
         status as Issuing Lender, its status as such will be specifically
         referenced.

                  Letter of Credit - see Section 2.1.3.

                  Loans means Acquisition Loans, Revolving Loans and Term Loans.

                  Loan Documents means this Agreement, the Notes, the Guaranty,
         the Letters of Credit and the Collateral Documents.

                  Revolving Commitment Amount means $125,000,000, as reduced
         from time to time pursuant to Section 6.1; provided that if the Company
         elects pursuant to Section 2.1.4 to convert Revolving Loans to Term
         Loans, the Revolving Commitment Amount shall automatically be reduced
         by the principal amount of the Revolving Loans so converted; provided,
         further, however, that if, following repayment in full of $110,000,000
         of Term Loans and reduction of the Term Commitment Amount to zero and
         prior to the Revolving Termination Date, the Company shall pay any Term
         Loan, the Revolving Loan Commitment shall be increased by the amount of
         such payment.

         (b) The following definitions shall be added to Section 1.1 of the
Credit Agreement, each in its appropriate alphabetical position:

                  Net Cash Proceeds means, with respect to any issuance of Debt,
         the aggregate cash proceeds received by the Company or any Subsidiary
         pursuant to such issuance, net of the direct costs of such issuance.

                  Revolving Termination Date means the earlier to occur of (a)
         August 3, 2005 or (b) such other date on which the Commitments
         terminate pursuant to Section 6 or 11.

                  Term Commitment Amount means $110,000,000, as reduced from
         time to time pursuant to Section 6.1 or 6.3; provided that the Term
         Commitment Amount shall be automatically and permanently reduced by the
         amount of any Term Loan made hereunder (other than Term Loans arising
         out of the conversion of Revolving Loans pursuant to the proviso to the
         definition of "Revolving Commitment Amount").

                  Term Commitment Termination Date means the earlier to occur of
         (a) December 23, 2007 and (b) such other date on which the Commitments
         terminate pursuant to Section 6 or 11.
                  Term Loan Termination Date means December 23, 2007.

                  Term Loans - see Section 2.1.4

                                      -2-

<PAGE>   3

         (c) The following definitions shall be deleted from Section 1.1 of the
Credit Agreement: Excluded Property, Issuer, LC Guaranty, LC Reimbursement
Agreement, Reimbursement Obligation and Termination Date.

         (d) The definition of "Interest Rate" in Section 1.1 of the Credit
Agreement shall be amended by deleting clause (b)(x) of the first sentence of
such definition and inserting the following in lieu thereof: "(b)(x) three
percent (3.00%) per annum on all Term Loans and, if the Company uses the
proceeds of any Revolving Loans to repurchase, redeem, repay or defease the
Subordinated Notes but has not converted such Revolving Loans to Term Loans
pursuant to Section 2.1.4, then, with respect to such Revolving Loans, three
percent (3.00%) per annum".

         1.2 The lead in paragraph to Section 2.1 of the Credit Agreement shall
be amended and restated to read in its entirety as follows:

                  2.1 Commitments. On and subject to the terms and conditions of
         this Agreement, each of the Lenders, severally and for itself alone,
         agrees to make Loans to, and to issue or participate in Letters of
         Credit for the account of, the Company as follows:

         1.3 Sections 2.1.1, 2.1.2, 3.1 and 5.1 shall be amended by inserting
the word "Revolving" in front of the words "Termination Date" each place where
such words appear in such Sections.

         1.4 Section 2.1.3 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  2.1.3 L/C Commitment. (a) The Issuing Lender will issue
         letters of credit, in each case containing such terms and conditions as
         are permitted by this Agreement and are reasonably satisfactory to the
         Issuing Lender (each a "Letter of Credit"), at the request of and for
         the account of the Company from time to time before the date which is
         30 days prior to the Revolving Termination Date and (b) as more fully
         set forth in Section 2.3.2, each Lender agrees to purchase a
         participation in each such Letter of Credit; provided that (i) the
         aggregate Stated Amount of all Letters of Credit shall not at any time
         exceed $10,000,000 and (ii) the Revolving Outstandings will not at any
         time exceed the Revolving Commitment Amount.

         1.5 The following Section 2.1.4 shall be added to the Credit Agreement:

                  2.1.4 Term Loan Commitment. Each Lender agrees to make loans
         to the Company (each such loan, a "Term Loan") on a Business Day before
         the Term Commitment Termination Date in such Lender's Pro Rata Share of
         such amount as the Company shall request from all Lenders; provided
         that the aggregate amount of Term Loans requested by the Company
         pursuant to this sentence shall not exceed the Term Commitment Amount.
         In addition, at any time when the Term Commitment Amount is zero, if
         the Company elects by delivering written notice of such election to the
         Agent, it

                                      -3-
<PAGE>   4

         may convert up to $78,000,000 of Revolving Loans to Term Loans
         notwithstanding that such election may cause the aggregate amount of
         Term Loans to exceed the Term Commitment Amount; provided that the
         aggregate amount of Revolving Loans converted into Term Loans shall not
         exceed the aggregate amount of Revolving Loans borrowed at any time the
         proceeds of which were used to repurchase, redeem, repay or defease the
         Subordinated Notes. No amount paid or prepaid with respect to any Term
         Loan may be reborrowed.

         1.6 Section 2.3 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  2.3  Letter of Credit Procedures.

                  2.3.1 L/C Applications. The Company shall give notice to the
         Agent and the Issuing Lender of the proposed issuance of each Letter of
         Credit on a Business Day which is at least three Business Days (or such
         lesser number of days as the Agent and the Issuing Lender shall agree
         in any particular instance in their sole discretion) prior to the
         proposed date of issuance of such Letter of Credit. Each such notice
         shall be accompanied by an L/C Application, duly executed by the
         Company and in all respects reasonably satisfactory to the Agent and
         the Issuing Lender, together with such other documentation as the Agent
         or the Issuing Lender may reasonably request in support thereof, it
         being understood that each L/C Application shall specify, among other
         things, the date on which the proposed Letter of Credit is to be
         issued, the expiration date of such Letter of Credit (which shall not
         be later than the earlier to occur of (x) one year after the date of
         issuance thereof and (y) thirty days prior to the scheduled Revolving
         Termination Date) and whether such Letter of Credit is to be
         transferable in whole or in part. So long as the Issuing Lender has not
         received written notice that the conditions precedent set forth in
         Section 10 with respect to the issuance of such Letter of Credit have
         not been satisfied, the Issuing Lender shall issue such Letter of
         Credit on the requested issuance date. The Issuing Lender shall
         promptly advise the Agent of the issuance of each Letter of Credit and
         of any amendment thereto, extension thereof or event or circumstance
         changing the amount available for drawing thereunder. In the event of
         any inconsistency between the terms of any L/C Application and the
         terms of this Agreement, the terms of this Agreement shall control.

                  2.3.2 Participations in Letters of Credit. Concurrently with
         the issuance of each Letter of Credit, the Issuing Lender shall be
         deemed to have sold and transferred to each other Lender, and each
         other Lender shall be deemed irrevocably and unconditionally to have
         purchased and received from the Issuing Lender, without recourse or
         warranty, an undivided interest and participation, to the extent of
         such other Lender's Pro Rata Share, in such Letter of Credit and the
         Company's reimbursement obligations with respect thereto. For the
         purposes of this Agreement, the unparticipated portion of each Letter
         of Credit shall be deemed to be the Issuing Lender's "participation"
         therein. The Issuing Lender hereby agrees, upon request of the Agent or
         any Lender, to deliver to the Agent or such Lender a list of all
         outstanding Letters of Credit issued by the Issuing

                                      -4-
<PAGE>   5

         Lender, together with such information related thereto as the Agent or
         such Lender may reasonably request.

                  2.3.3 Reimbursement Obligations. The Company hereby
         unconditionally and irrevocably agrees to reimburse the Issuing Lender
         for each payment or disbursement made by the Issuing Lender under any
         Letter of Credit honoring any demand for payment made by the
         beneficiary thereunder, in each case on the date that such payment or
         disbursement is made. Any amount not reimbursed on the date of such
         payment or disbursement shall bear interest from the date of such
         payment or disbursement to the date that the Issuing Lender is
         reimbursed by the Company therefor, payable on demand, at a rate per
         annum equal to the Interest Rate from time to time in effect plus,
         beginning on the third Business Day after receipt of notice from the
         Issuing Lender of such payment or disbursement, 2%. The Issuing Lender
         shall notify the Company and the Agent whenever any demand for payment
         is made under any Letter of Credit by the beneficiary thereunder;
         provided that the failure of the Issuing Lender to so notify the
         Company shall not affect the rights of the Issuing Lender or the
         Lenders in any manner whatsoever.

                  2.3.4 Limitation on Obligations of Issuing Lender. In
         determining whether to pay under any Letter of Credit, the Issuing
         Lender shall not have any obligation to the Company or any Lender other
         than to confirm that any documents required to be delivered under such
         Letter of Credit appear to have been delivered and appear to comply on
         their face with the requirements of such Letter of Credit. Any action
         taken or omitted to be taken by the Issuing Lender under or in
         connection with any Letter of Credit, if taken or omitted in the
         absence of gross negligence and willful misconduct, shall not impose
         upon the Issuing Lender any liability to the Company or any Lender and
         shall not reduce or impair the Company's reimbursement obligations set
         forth in Section 2.3.3 or the obligations of the Lenders pursuant to
         Section 2.3.5.

                  2.3.5 Funding by Lenders to Issuing Lender. If the Issuing
         Lender makes any payment or disbursement under any Letter of Credit and
         the Company has not reimbursed the Issuing Lender in full for such
         payment or disbursement by 10:00 A.M., Detroit time, on the date of
         such payment or disbursement, or if any reimbursement received by the
         Issuing Lender from the Company is or must be returned or rescinded
         upon or during any bankruptcy or reorganization of the Company or
         otherwise, each other Lender shall be obligated to pay to the Agent for
         the account of the Issuing Lender, in full or partial payment of the
         purchase price of its participation in such Letter of Credit, its Pro
         Rata Share of such payment or disbursement (but no such payment shall
         diminish the obligations of the Company under Section 2.3.3), and, upon
         notice from the Issuing Lender, the Agent shall promptly notify each
         other Lender thereof. Each other Lender irrevocably and unconditionally
         agrees to so pay to the Agent in immediately available funds for the
         Issuing Lender's account the amount of such other Lender's Pro Rata
         Share of such payment or disbursement. If and to the extent any Lender
         shall not have made such amount available to the Agent by 2:00 P.M.,
         Detroit time, on the Business Day on which such Lender receives notice
         from the Agent of such payment or disbursement (it being understood
         that any such notice received after noon, Detroit time, on any Business
         Day shall

                                      -5-
<PAGE>   6

         be deemed to have been received on the next following Business Day),
         such Lender agrees to pay interest on such amount to the Agent for the
         Issuing Lender's account forthwith on demand, for each day from the
         date such amount was to have been delivered to the Agent to the date
         such amount is paid, at a rate per annum equal to (a) for the first
         three days after demand, the Federal Funds Rate from time to time in
         effect and (b) thereafter, the Interest Rate from time to time in
         effect. Any Lender's failure to make available to the Agent its Pro
         Rata Share of any such payment or disbursement shall not relieve any
         other Lender of its obligation hereunder to make available to the Agent
         such other Lender's Pro Rata Share of such payment, but no Lender shall
         be responsible for the failure of any other Lender to make available to
         the Agent such other Lender's Pro Rata Share of any such payment or
         disbursement.

         1.7 Section 2.5 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  2.5 Certain Conditions. Notwithstanding any other provision of
         this Agreement, no Lender shall have an obligation to make any Loan and
         the Issuing Lender shall not have any obligation to issue any Letter of
         Credit, if an Event of Default or Unmatured Event of Default has
         occurred and is continuing.

         1.8 Section 3.1 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  3.1 Notes. The Loans of each Lender shall be evidenced by a
         promissory note (each a "Note") substantially in the form set forth in
         Exhibit A, with appropriate insertions, payable to the order of such
         Lender as follows:

                  (a) each Revolving Loan and Acquisition Loan of such Lender
         shall be paid in full on the Revolving Termination Date; and

                  (b) each Term Loan of such Lender shall be paid in
         installments equal to such Lender's Pro Rata Share of the aggregate
         principal amount of the installments of the Term Loans to be paid on
         the following dates:

    Payment Date           Payment Amount
    ------------           --------------
    December 23, 2001      $20,000,000 (or, if less, the aggregate amount of all
                           Term Loans then outstanding)
    December 23, 2003      $20,000,000 (or, if less, the aggregate amount of all
                           Term Loans then outstanding)
    December 23, 2005      $20,000,000 (or, if less, the aggregate amount of all
                           Term Loans then outstanding)

         Term Loan Termination Date The aggregate amount of all Term Loans then
outstanding.

                                      -6-
<PAGE>   7

         1.9 Section 6.1 of the Credit Agreement shall be amended by (i)
deleting the words "LC Guaranties" where they appear in clause (a) and inserting
in lieu thereof the words "Letters of Credit", (ii) deleting clause (c) of such
Section in its entirety and (iii) adding the following clauses (c) and (d):

                  (c) The Company may from time to time by written notice to the
         Agent (which shall promptly advise each Lender thereof) permanently
         reduce the Term Commitment Amount to an amount not less than the
         aggregate principal amount of all Term Loans then outstanding.

                  (d) All reductions of the Revolving Commitment Amount, the
         Acquisition Commitment Amount and the Term Commitment Amount shall
         reduce the Commitments pro rata among the Lenders according to their
         respective Pro Rata Shares.

         1.10 Section 6.2 of the Credit Agreement shall be amended by adding the
following sentence at the end thereof:

         All such prepayments of the Term Loans shall be applied to the
         remaining installments thereof in inverse order of maturity.

         1.11 The following Sections 6.3 and 6.4 shall be added to the Credit
Agreement:

                  6.3 Mandatory Reduction of Term Commitment Amount. If the
         Subordinated Notes shall be refunded or refinanced using the proceeds
         of any Debt (other than Loans hereunder), the Term Commitment Amount
         shall automatically and permanently be reduced by an amount equal to
         the principal amount of Subordinated Notes so refunded or refinanced.

                  6.4 Mandatory Prepayments. If the Company or any Subsidiary
         shall receive any Net Cash Proceeds from the issuance of any
         Subordinated Debt (other than Seller Subordinated Debt and other than
         Refinancing Debt in respect of any portion of the Subordinated Notes
         that has not been repurchased, redeemed, defeased or otherwise repaid
         with the proceeds of Loans) or any other Debt that is not permitted by
         Section 9.7, the Company shall, concurrently with such receipt, make a
         prepayment of the Term Loans in an amount equal to 100% of such Net
         Cash Proceeds. Each such prepayment of the Term Loans shall be applied
         to the remaining installments thereof in inverse order of maturity.

         1.12 Section 7.5 of the Credit Agreement shall be amended by (i)
deleting the words "LC Guaranty" where they appear and inserting in lieu thereof
the words "Letter of Credit" and (ii) deleting the words "LC Guaranties" where
they appear and inserting in lieu thereof the words "Letters of Credit."

         1.13 Section 9.8 of the Credit Agreement shall be amended by deleting
clause (d) thereof in its entirety and substituting the following therefor:

                                      -7-
<PAGE>   8

                  (d) (i) Liens arising in connection with Capital Leases (and
         attaching only to the property being leased), (ii) Liens existing on
         property at the time of the acquisition thereof by the Company or any
         Subsidiary (and not created in contemplation of such acquisition) and
         (iii) Liens that constitute purchase money security interests on any
         property securing Debt incurred for the purpose of financing all or any
         part of the cost of acquiring such property, provided that any such
         Lien attaches to such property within 60 days of the acquisition
         thereof and attaches solely to the property so acquired;

         1.14 Section 9.9 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  9.9 Restricted Payments. Not, and not permit any Subsidiary
         to, (a) make any distribution to any of its shareholders, (b) purchase
         or redeem any of its capital stock or other equity interests or any
         warrants, options or other rights in respect thereof, (c) pay any
         management fees or similar fees to any of its shareholders or any
         Affiliate thereof, (d) make any redemption, prepayment, defeasance or
         repurchase of any Subordinated Debt or (e) set aside funds for any of
         the foregoing. Notwithstanding the foregoing, (i)(i) any Subsidiary
         may pay dividends or make other distributions to the Company or another
         Subsidiary and (ii) so long as no Event of Default or Unmatured Event
         of Default has occurred and is continuing or would result therefrom,
         the Company and its Subsidiaries may (w) pay dividends to its
         stockholders and purchase or redeem its capital stock, (x) pay
         management fees to Young Automotive Group, LLC, an Indiana limited
         liability company ("YAG"), and its Affiliates (collectively, "Young")
         in connection with joint ventures formed by the Company and its
         Subsidiaries pursuant to that certain Joint Venture Formation
         Agreement, dated as of January 31, 1998, among the Company, YAG and
         certain other parties (the "Young JV Agreement"), in an amount not to
         exceed 30% of the annual pre-tax income of all Persons in which
         Investments are made pursuant to the Young JV Agreement, (y)
         repurchase, redeem, defease or otherwise repay all or any of the
         Subordinated Notes using the proceeds of the Term Loans and/or the
         proceeds of up to $78,000,000 of Revolving Loans and (z) repurchase,
         redeem, defease or otherwise repay all or any of the Subordinated Notes
         using the proceeds of an offering of equity securities, which equity
         securities are issued by the Company.

         1.15 Section 9.12 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  9.12 Use of Proceeds. Use the proceeds of the Revolving Loans
         and Acquisition Loans, and the Letters of Credit, solely for working
         capital, for Acquisitions permitted by Section 9.10, for capital
         expenditures, to repurchase, redeem, defease or otherwise repay all or
         any of the Subordinated Notes (to the extent permitted by Section 9.9)
         to make Investments permitted hereunder, to repurchase capital stock
         and for other general corporate purposes (including, in the case of
         Revolving Loans, to pay Term Loans); use the proceeds of the Term Loans
         solely to repurchase, redeem, defease or otherwise repay all or any of
         the Subordinated Notes; and not use

                                      -8-
<PAGE>   9

         or permit any proceeds of any Loan to be used, either directly or
         indirectly, for the purpose, whether immediate, incidental or ultimate,
         of "purchasing or carrying" any Margin Stock.

         1.16 Section 9.13 of the Credit Agreement shall be amended by (i)
deleting the parenthetical phrase in clause (a)(i) thereof and inserting in lieu
thereof the following "(other than property in which the Company is prohibited
from granting a security interest, pledge or assignment pursuant to a Permitted
Restriction)" and (ii) deleting the first parenthetical phrase in clause (b)
thereof and inserting in lieu thereof the following "(other than property in
which such Subsidiary is prohibited from granting a security interest, pledge or
assignment pursuant to a Permitted Restriction)."

         1.17 The lead in paragraph of Section 10 shall be amended and restated
to read in its entirety as follows:

                  The obligation of each Lender to make its Loans and of the
         Issuing Lender to issue Letters of Credit is subject to the following
         conditions precedent:

         1.18 Section 10.1 of the Credit Agreement shall be amended by deleting
the words "CFC to issue its initial LC Guaranty" where they appear and inserting
in lieu thereof the words "the Issuing Lender to issue its initial Letter of
Credit."

         1.19 The lead in paragraph to Section 10.2 of the Credit Agreement
shall be amended and restated to read in its entirety as follows:

                  10.2 Conditions. The obligation (a) of each Lender to make
         each Loan and (b) of the Issuing Lender to issue each Letter of Credit
         is subject to the following further conditions precedent that:

         1.20 Section 10.2.1 of the Credit Agreement shall be amended by (i)
deleting the word "and" following clause (b) thereof, (ii) amending and
restating clause (c) thereof to read in its entirety as follows

                  (c) unless the proceeds of such borrowing are to be used to
         repurchase, redeem or repay all outstanding Subordinated Notes, for so
         long as either Subordinated Notes Indenture is in effect (unless the
         obligations of the Company with respect to all Subordinated Notes
         thereunder have been, or are concurrently with such borrowing to be,
         defeased in accordance with the terms of such Subordinated Notes
         Indenture), if after giving effect to such borrowing or the issuance of
         such Letter of Credit, the sum of the aggregate principal amount of all
         outstanding Loans plus the Stated Amount of all Letters of Credit would
         exceed the maximum amount of Debt permitted under each of Section
         4.04(ii) of the Series A Subordinated Notes Indenture or Section
         4.4(ii) of the Series B Subordinated Notes Indenture, the Agent shall
         be satisfied that such borrowing or such issuance of a Letter of Credit
         will not violate either Subordinated Notes Indenture (or any
         Refinancing Agreement) and that the Company's obligations to the Agent
         and the Lenders in respect of such

                                      -9-
<PAGE>   10

         borrowing or Letter of Credit are "Senior Debt" under and as defined in
         each Subordinated Notes Indenture that is in effect at the time of such
         borrowing; and

and (iii) adding the following clause (d)

                  (d) (i) if the proceeds of any borrowing are to be used to
         finance a tender offer for Subordinated Notes, (x) all terms and
         conditions of any such tender offer shall be satisfactory to the Agent
         (including the maximum tender price and all fees and commissions paid
         to any information agent, solicitation agent, dealer manager or Person
         performing any similar role) and each such tender offer shall comply
         with the offer documents applicable thereto and all applicable laws
         (including Rule 14e-1 under the Securities Exchange Act of 1934 and
         other Federal and state securities laws and regulations) and (y) there
         shall have been delivered to the Agent true and correct copies of all
         offer documents applicable thereto, all of which shall be in form and
         substance reasonably satisfactory to the Agent (the Agent agrees to
         review any such documents received by it reasonably promptly following
         receipt) and (ii) if the proceeds of any borrowing are to be used in
         connection with any solicitation of consents to amend any Subordinated
         Notes Indenture, all terms and conditions of each such consent
         solicitation shall be reasonably satisfactory to the Agent (the Agent
         agrees to review any such documents received by it reasonably promptly
         following receipt).

         1.21 The following Section 10.4 shall be added to the Credit Agreement:

                  10.4 Conditions to Term Loans. The obligation of each Lender
         to make Term Loans is subject to the following further conditions
         precedent that:

                  10.4.1 Filings, Registrations and Recordings. The Agent shall
         have received each document (including Uniform Commercial Code
         financing statements) required by the Collateral Documents or under law
         or reasonably requested by the Agent to be filed, registered or
         recorded in order to create in favor of the Agent, for the benefit of
         the Lenders, a perfected Lien in all equipment of the Company and its
         Subsidiaries (other than Foreign Subsidiaries), prior and superior to
         any other Person, in proper form for filing, registration or recording.

                  10.4.2 Subordinated Note Repurchase. The Agent shall be
         satisfied that the proceeds of such borrowing are to be used to
         repurchase, redeem, defease or otherwise repay the Subordinated Notes.

         1.22 The last two sentences of Section 11.2 of the Credit Agreement
shall be deleted and the following inserted in lieu thereof:

         Any cash collateral delivered hereunder shall be held by the Agent
         (without liability for interest thereon) and applied to reimbursement
         obligations under the Letters of Credit. After the expiration or
         termination of the Letters of Credit, such cash collateral shall be
         applied by the Agent to any

                                      -10-
<PAGE>   11

         remaining obligations hereunder and any excess shall be delivered to
         the Company or as a court of competent jurisdiction may direct.

         1.23 Section 12.1(b) of the Credit Agreement shall be amended and
restated in its entirety to read as follows:

                  (b) The Issuing Lender shall act on behalf of the Lenders with
         respect to any Letters of Credit issued by it and the documents
         associated therewith. The Issuing Lender shall have all of the benefits
         and immunities (i) provided to the Agent in this Section 12 with
         respect to any acts taken or omissions suffered by the Issuing Lender
         in connection with Letters of Credit issued by it or proposed to be
         issued by it and the applications and agreements for letters of credit
         pertaining to such Letters of Credit as fully as if the term "Agent",
         as used in this Section 12, included the Issuing Lender with respect to
         such acts or omissions and (ii) as additionally provided in this
         Agreement with respect to the Issuing Lender.

         1.24 Section 13.1 of the Credit Agreement shall be amended by (i)
deleting clause (i) of the penultimate sentence and inserting the following in
lieu thereof "(i) increase the Revolving Commitment Amount, the Acquisition
Commitment Amount or the Term Commitment Amount" and (ii) deleting the final
sentence and inserting the following in lieu thereof:

         No provision of this Agreement relating to the rights or duties of the
         Issuing Lender in its capacity as such shall be amended, modified or
         waived without the consent of the Issuing Lender.

         1.25 Section 13.9.1 of the Credit Agreement shall be amended by (i)
deleting the word "CFC" where it appears and inserting in lieu thereof the words
"the Issuing Lender" and (ii) adding he following to clause (i) of the first
sentence thereof "plus the unpaid amount of such Lender's Term Loans."

         1.26 Schedule 2.1 to the Credit Agreement is replaced by Schedule 2.1
hereto.

         SECTION 2 REPRESENTATIONS AND WARRANTIES. The Company represents and
warrants to the Agent and the Lenders that (a) the representations and
warranties made in Section 8 of the Credit Agreement are true and correct on and
as of the Amendment Effective Date with the same effect as if made on and as of
the Amendment Effective Date (except to the extent relating solely to an earlier
date, in which case they were true and correct as of such earlier date); (b) no
Event of Default or Unmatured Event of Default exists or will result from the
execution of this Amendment; (c) the execution and delivery by the Company of
this Amendment and the performance by the Company of its obligations under the
Credit Agreement as amended hereby (as so amended, the "Amended Credit
Agreement") (i) are within the corporate powers of the Company, (ii) have been
duly authorized by all necessary corporate action, (iii) have received all
necessary approval from any governmental authority and (iv) do not and will not
contravene or conflict with any provision of any law, rule or regulation or any
order, decree, judgment or award which is binding on the Company or any of its
Subsidiaries or of any provision of the certificate of incorporation or

                                      -11-
<PAGE>   12

bylaws of the Company or of any agreement, indenture, instrument or other
document which is binding on the Company or any of its Subsidiaries; and (d) the
Amended Credit Agreement is the legal, valid and binding obligation of the
Company, enforceable against the Company in accordance with its terms, except as
enforceability may be limited by applicable bankruptcy, insolvency or similar
laws affecting the enforcement of creditors' rights generally or by equitable
principles relating to enforceability.

         SECTION 3 EFFECTIVENESS. The amendments set forth in Section 1 above
shall become effective on such date (the "Amendment Effective Date") when the
Agent shall have received (a) a counterpart of this Amendment executed by the
Company and the Required Lenders and (b) each of the following documents, each
in form and substance reasonably satisfactory to the Agent:

         3.1 Reaffirmation. A Reaffirmation of Loan Documents in the form
attached hereto as Exhibit A executed by each Loan Party other than the Company.

         3.2 Security Agreement. A counterpart of the Amended and Restated
Security Agreement in substantially the form attached hereto as Exhibit B
executed by the Company and each Subsidiary (other than Foreign Subsidiaries).

         3.3 Opinion of Counsel. An opinion of counsel or counsels reasonably
satisfactory to the Agent.

         3.4 Other Documents. Such other documents as the Agent or any Lender
may reasonably request.

         SECTION 4  MISCELLANEOUS.

         4.1 Continuing Effectiveness, etc. As herein amended, the Credit
Agreement shall remain in full force and effect and is hereby ratified and
confirmed in all respects. After the Amendment Effective Date, all references in
the Credit Agreement, the Notes, each other Loan Document and any similar
document to the "Credit Agreement" or similar terms shall refer to the Amended
Credit Agreement.

         4.2 Counterparts. This Amendment may be executed in any number of
counterparts and by the different parties on separate counterparts, and each
such counterpart shall be deemed to be an original but all such counterparts
shall together constitute one and the same Amendment.

         4.3 Expenses. The Company agrees to pay the reasonable costs and
expenses of the Agent (including reasonable fees and disbursements of counsel,
including, without duplication, the allocable costs of internal legal services
and all disbursements of internal legal counsel) in connection with the
preparation, execution and delivery of this Amendment.

         4.4 Governing Law. This Amendment shall be a contract made under and
governed by the laws of the State of New York applicable to contracts made and
to be wholly performed within the State of New York.

         4.5 Successors and Assigns. This Amendment shall be binding upon the
Company, the Lenders and the Agent and their respective successors and assigns,
and shall inure to the benefit of the Company, the Lenders and the Agent and the
successors and assigns of the Lenders and the Agent.

         Delivered as of the day and year first above written.

                                      -12-
<PAGE>   13

                                        UNITED AUTO GROUP, INC.

                                        By
                                          ---------------------------
                                        Title
                                             ------------------------

                                        CHRYSLER FINANCIAL
                                        COMPANY, L.L.C., as
                                        Agent and as a Lender

                                        By
                                          ---------------------------
                                        Title
                                              -----------------------

                                      -13-
<PAGE>   14
                                    EXHIBIT A

                                REAFFIRMATION OF
                                 LOAN DOCUMENTS

                                December 23, 1999

Chrysler Financial Company, L.L.C., as Agent
and the other parties
to the Credit Agreement
referred to below

                       RE: REAFFIRMATION OF LOAN DOCUMENTS

Ladies and Gentlemen:

         Please refer to:

                  1. The Pledge Agreement dated as of October 8, 1999 (the
         "Pledge Agreement") among United Auto Group, Inc. ("UAG"), various of
         its subsidiaries and Chrysler Financial Company, L.L.C., in its
         capacity as Agent (in such capacity, the "Agent");

                  2. The Guaranty dated as of October 8, 1999 (the "Guaranty")
         executed in favor of the Agent and various other parties by all
         subsidiaries of UAG; and

                  3. The Security Agreement dated as of October 8, 1999 (the
         "Security Agreement") among UAG, its subsidiaries and the Agent.

         The Guaranty, the Pledge Agreement, the Security Agreement and the
Credit Agreement referred to below are collectively referred to herein as the
"Loan Documents". Capitalized terms not otherwise defined herein will have the
meanings given in the Credit Agreement referred to below.

         Each of the undersigned acknowledges that the Company, the Lenders and
the Agent have executed the Second Amendment (the "Amendment") to the Credit
Agreement dated as of August 3, 1999 (as heretofore amended, as so amended and
as the same may be further amended, supplemented or otherwise modified from time
to time, the "Credit Agreement").

         Each of the undersigned hereby (i) consents and agrees to the
amendments to the Loan Documents to which such undersigned is a party contained
in the Amendment and (ii) confirms that each Loan

<PAGE>   15

Document to which such undersigned is a party remains in full force and effect
after giving effect to the effectiveness of the Amendment and that, upon such
effectiveness, all references in such Loan Document to the "Credit Agreement"
shall be references to the Credit Agreement as amended by the Amendment.

                                      -2-
<PAGE>   16

         The letter agreement may be signed in counterparts and by the various
parties as herein on separate counterparts. This letter agreement shall be
governed by the laws of the State of New York applicable to contracts made and
to be performed entirely within such State.

                                      UAG NORTHEAST, INC.
                                      DIFEO PARTNERSHIP, INC.
                                      DIFEO PARTNERSHIP HCT, INC.
                                      DIFEO PARTNERSHIP SCT, INC.
                                      DIFEO PARTNERSHIP RCT, INC.
                                      DIFEO PARTNERSHIP RCM, INC.
                                      DIFEO PARTNERSHIP VIII, INC.
                                      DIFEO PARTNERSHIP IX, INC.
                                      DIFEO PARTNERSHIP X, INC.
                                      UAG HUDSON, INC.
                                      SOMERSET MOTORS INC.
                                      UAG NORTHEAST BODY SHOP, INC.
                                      UAG NORTHEAST (NY), INC.
                                      UNITED LANDERS, INC.
                                      LANDERS AUTO SALES, INC.
                                      LANDERS UNITED AUTO GROUP NO. 2, INC.
                                      LANDERS UNITED AUTO GROUP, INC.
                                      LANDERS UNITED AUTO GROUP NO. 3, INC.
                                      LANDERS UNITED AUTO GROUP NO. 4, INC.
                                      LANDERS BUICK-PONTIAC, INC.
                                      UNITED AUTO GROUP, INC.
                                      UAG ATLANTA, INC.
                                      UAG DULUTH, INC.
                                      UAG ATLANTA II, INC.
                                      UNITED NISSAN, INC. (GA)
                                      UNITED NISSAN, INC. (NY)
                                      UNITED NISSAN, INC. (TN)
                                      UAG ATLANTA III, INC.
                                      PEACHTREE NISSAN, INC.
                                      UAG ATLANTA IV, INC.
                                      UAG ATLANTA IV MOTORS, INC.
                                      UAG ATLANTA V, INC.
                                      CONYERS NISSAN, INC.
                                      UAG ATLANTA VI, INC.
                                      UNITED JEEP CHRYSLER PLYMOUTH OF
                                        STONE MOUNTAIN, INC.
                                      UNITED MAZDA, INC.

                                      -3-

<PAGE>   17

                                      UAG TENNESSEE, INC.
                                      UAG WEST, INC.
                                      SA AUTOMOTIVE, LTD.
                                      SL AUTOMOTIVE, LTD.
                                      SPA AUTOMOTIVE, LTD.
                                      LRP, LTD.
                                      SUN MOTORS, LTD.
                                      SCOTTSDALE MANAGEMENT GROUP, LTD.
                                      SAU AUTOMOTIVE, LTD.
                                      SK MOTORS, LTD.
                                      KMT/UAG, INC.
                                      RELENTLESS PURSUIT ENTERPRISES, INC.
                                      TRI-CITY LEASING, INC.
                                      HT AUTOMOTIVE LTD.
                                      UAG NEVADA, INC.
                                      UAG TEXAS, INC.
                                      UAG TEXAS II, INC.
                                      UAG EAST, INC.
                                      WESTBURY SUPERSTORE, LTD.
                                      WESTBURY NISSAN LTD.
                                      PALM AUTO PLAZA, INC.
                                      FLORIDA CHRYSLER PLYMOUTH, INC.
                                      WEST PALM NISSAN, INC.
                                      WEST PALM INFINITI, INC.
                                      NORTHLAKE AUTO FINISH, INC.
                                      J & S AUTO REFINISHING, LTD.
                                      J&S IMPORTS, INC.
                                      WEST PALM AUTO MALL, INC.
                                      AUTO MALL PAYROLL SERVICES, INC.
                                      AUTO MALL STORAGE, INC.
                                      AMITY AUTO PLAZA, LTD.
                                      AMITY NISSAN OF MASSAPEQUA, LTD.
                                      UAG CAROLINA, INC.
                                      REED-LALLIER CHEVROLET, INC.
                                      MICHAEL CHEVROLET-OLDSMOBILE, INC.
                                      GENE REED CHEVROLET, INC.
                                      UNITEDAUTO DODGE OF SHREVEPORT,
                                           INC.
                                      UAG MEMPHIS, INC.
                                      COVINGTON PIKE DODGE, INC.
                                      UAG GRACELAND, INC.

                                      -4-

<PAGE>   18

                                      THE NEW GRACELAND DODGE, INC.
                                      UAG GRACELAND II, INC.
                                      UAG MEMPHIS II, INC.
                                      UAG MEMPHIS III, INC.
                                      UAG MEMPHIS IV, INC.
                                      UAG MEMPHIS V, INC.
                                      UAG KNOXVILLE, INC.
                                      UAG KNOXVILLE II, INC.
                                      UAG-CARIBBEAN, INC.
                                      UAG YOUNG, INC.
                                      DAN YOUNG INC.
                                      DAN YOUNG CHEVROLET INC.
                                      YOUNG MANAGEMENT GROUP, INC.
                                      PARKWAY CHEVROLET, INC.
                                      UAG YOUNG II, INC.
                                      UAG CENTURY MOTORS, INC.
                                      UAG PARAMOUNT MOTORS, INC.
                                      UAG KISSIMMEE MOTORS, INC.
                                      UAG CITRUS, INC.
                                      UAG CLASSIC, INC.
                                      CLASSIC AUTO GROUP, INC.
                                      CHERRY HILL CLASSIC CARS, INC.
                                      CLASSIC OF CHERRY HILL, INC.
                                      CLASSIC MANAGEMENT COMPANY, INC.
                                      CLASSIC CHEVROLET, INC.
                                      CLASSIC ENTERPRISE, INC.
                                      CLASSIC AUTO GROUP HOLDINGS, INC.
                                      CLASSIC IMPORTS, INC.
                                      UNITEDAUTO ENTERPRISES, INC.
                                      UNITED AUTOCARE, INC.
                                      UNITED AUTOCARE PRODUCTS, INC.
                                      UNITEDAUTO FOURTH FUNDING INC.
                                      UNITEDAUTO FIFTH FUNDING INC.
                                      AUTO LEASING CORPORATION
                                      UAG FINANCE COMPANY, INC.
                                      6725 DEALERSHIP LTD.
                                      CHERRY HILL CLASSIC CARS
                                      CLASSIC MOTOR SALES LLC
                                      D. YOUNG CHEVROLET LLC
                                      DAN YOUNG MOTORS LLC
                                      DAN YOUNG TIPTON LLC
                                      UAG YOUNG AUTOMOTIVE GROUP LLC

                                      -5-

<PAGE>   19

                                      UAG LANDERS, INC.
                                      YOUNG AUTOMOTIVE HOLDINGS LLC
                                      UAG LAKE NORMAN LLC

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      DIFEO HYUNDAI PARTNERSHIP
                                      DIFEO NISSAN PARTNERSHIP
                                      DIFEO CHRYSLER PLYMOUTH JEEP
                                      EAGLE PARTNERSHIP
                                      DIFEO LEASING PARTNERSHIP
                                      DIFEO CHEVROLET-GEO PARTNERSHIP
                                      J&F OLDSMOBILE PARTNERSHIP
                                      DANBURY AUTO PARTNERSHIP
                                      FAIR HYUNDAI PARTNERSHIP
                                      FAIR CHEVROLET-GEO PARTNERSHIP
                                      DANBURY CHRYSLER PLYMOUTH PARTNERSHIP
                                      DIFEO TENAFLY PARTNERSHIP
                                      By: DIFEO PARTNERSHIP, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      OCT PARTNERSHIP
                                      By: DIFEO PARTNERSHIP VIII, INC.
                                           a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -6-
<PAGE>   20

                                      OCM PARTNERSHIP
                                      By: DIFEO PARTNERSHIP IX, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      HUDSON MOTORS PARTNERSHIP
                                      By: DIFEO PARTNERSHIP HCT, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      COUNTY AUTO GROUP PARTNERSHIP
                                      By: DIFEO PARTNERSHIP RCT, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      SOMERSET MOTORS PARTNERSHIP
                                      By: DIFEO PARTNERSHIP SCT, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -7-
<PAGE>   21

                                      ROCKLAND MOTORS PARTNERSHIP
                                      By: DIFEO PARTNERSHIP RCM, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      6725 AGENT PARTNERSHIP
                                      By: SAU AUTOMOTIVE, LTD.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      SHANNON AUTOMOTIVE, LTD.
                                      By: UAG TEXAS, INC.
                                          a general partner

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      DAN YOUNG TIPTON, LLC
                                      By: DAN YOUNG, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -8-
<PAGE>   22

                                      YOUNG AUTOMOTIVE HOLDINGS, LLC
                                      UAG YOUNG AUTOMOTIVE GROUP, LLC
                                      D. YOUNG CHEVROLET, LLC
                                      By: UAG YOUNG, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      DAN YOUNG MOTORS LLC
                                      By: DAN YOUNG CHEVROLET, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      UAG CITRUS MOTORS, LLC
                                      By: UAG CITRUS, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      CLASSIC MOTOR SALES, LLC
                                      CLASSIC ENTERPRISES, LLC
                                      By: UAG CITRUS, INC.
                                          Member

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -9-
<PAGE>   23

                                      CLASSIC NISSAN OF TURNERSVILLE, LLC
                                      By: Thomas J. Hessert
                                          Member

                                      ----------------------------------

                                      -10-
<PAGE>   24

                                      SCOTTSDALE JAGUAR, LTD.

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

                                      -11-
<PAGE>   25

                                      LANDERS UNITED AUTO GROUP NO. 5, INC.
                                      BPT HOLDINGS, INC.
                                      LANDERS FORD, INC
                                      NATIONAL CITY FORD, INC.
                                      CENTRAL FORD CENTER, INC.
                                      PIONEER FORD SALES, INC.

                                      By:
                                         ----------------------------------
                                      Title:
                                            -------------------------------

ACKNOWLEDGED AND AGREED
as of the date first written above

CHRYSLER FINANCIAL COMPANY, L.L.C.,
as Agent

By:
   ----------------------------------
Title:
      -------------------------------

                                      -12-

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