Document:

<PAGE>

                                                                    EXHIBIT 10.2

                              Louis M. Brown, Jr.
                                4801 Maury Lane
                          Alexandria, Virginia  22304

                                August 3, 2000

Precision Auto Care, Inc.
748 Miller Drive, S.E.
Leesburg, Virginia 20175
Attention:  Board of Directors

                                   AGREEMENT
                                   ---------

Ladies and Gentlemen:

     This letter agreement (the "Agreement") sets forth our mutual understanding
regarding the purchase by me ("Buyer") of 1,700,000 shares of Common Stock of
Precision Auto Care, Inc. (the "Company") and the Buyer's employment with the
Company.  The terms and conditions of the Agreement are as follows:

     1.   Purchase of Common Stock.  Subject to the terms and conditions set
          ------------------------
forth herein and as an inducement to Buyer to accept employment with the
Company, the Company hereby agrees to issue and sell to Buyer, and Buyer hereby
agrees that it will purchase from the Company, on August 4, 2000 (the "Closing
Date"), 1,700,000 shares of Common Stock of the Company (the "Shares") for an
aggregate purchase price of $750,000 (the "Purchase Price").

     2.   Employment Matters.  The Buyer shall be appointed the Chief Executive
          ------------------
Officer of the Company, effective as of the Closing Date.  The Buyer will serve
in that capacity at the pleasure of the Board of Directors until his successor
has been duly elected and appointed by the Company's Board of Directors.  During
the first year Buyer serves as the Chief Executive Officer of the Company, the
Buyer will receive a salary of $1.00.  Thereafter, the Buyer shall be entitled
to receive a base salary and other compensation as may be determined by the
Board of Directors of the Company.  The Board of Directors shall appoint Buyer
to serve as a Class II director of the Company (with a term expiring at the
annual meeting of the shareholders in 2002) as soon as is reasonably practicable
following the Closing Date.

     3.   Representations and Warranties of the Company.  The Company represents
          ---------------------------------------------
and warrants to Buyer as follows:

          (a)  Corporate Existence and Power.  The Company (i) is a corporation
               -----------------------------
duly organized, validly existing and in good standing under the laws of the
Commonwealth of Virginia; (ii) has all requisite corporate power and authority
to own and operate its property, to lease the property it operates as lessee and
to conduct the business in which it is currently, or is currently proposed to
be, engaged; (iii) is duly qualified as a foreign corporation, licensed and in
good standing under the laws of each jurisdiction to which its ownership, lease
or operation of
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August 3, 2000
Page 2

property or the conduct of its business requires such qualification; and (iv)
has the corporate power and authority to execute, deliver and perform its
obligations under this Agreement.

          (b)  Authorization; No Contravention.  The execution, delivery and
               -------------------------------
performance by the Company of this Agreement and the transactions contemplated
hereby, including, without limitation, the sale, issuance and delivery of the
Shares, the hiring of Buyer as the Company's Chief Executive Officer and the
appointment of Buyer to the Company's Board of Directors, (i) have been duly
authorized by all necessary corporate action of the Company; (ii) do not
contravene the terms of the Articles of Incorporation or the Bylaws of the
Company; (iii) do not violate, conflict with or result in any breach or
contravention of, or the creation of any lien under, any contractual obligation
of the Company, or any requirement of law applicable to the Company; and (iv) do
not violate any judgment, injunction, writ, award, decree or order
(collectively, "Orders") of any nature of any governmental authority against, or
binding upon, the Company. The Company has not previously entered into any
contractual obligation that is currently in effect or by which it is currently
bound, granting any rights to any third party that are inconsistent with the
rights to be granted by the Company in this Agreement.

          (c)  Governmental Authorization; Third Party Consents.  No approval,
               ------------------------------------------------
consent, compliance, exemption, authorization or other action by, or notice to,
or filing with, any third party or governmental authority in respect of any
requirement of law is necessary or required in connection with the execution,
delivery or performance by or enforcement against the Company of this Agreement
or the transactions contemplated hereby.

          (d)  Binding Effect.  This Agreement has been duly executed and
               --------------
delivered by the Company and constitutes 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,
reorganization, fraudulent conveyance or transfer, moratorium or similar laws
and by general principles of equity relating to enforceability (regardless of
whether considered in a proceeding at law or in equity).

          (e)  Litigation.  The Company has not received notice of any Order and
               ----------
to the knowledge of the Company no Order has been issued by any court or other
governmental authority against the Company purporting to enjoin or restrain the
execution, delivery or performance of any of the transactions contemplated by
this Agreement.

          (f)  Compliance with Laws.  The Company is in compliance with all
               --------------------
requirements of law and all Orders issued by any court or governmental authority
in all material respects.

          (g)  Capitalization.  On the Closing Date, after giving effect to the
               --------------
transactions contemplated by this Agreement, the authorized capital stock of the
Company shall consist of 19,000,000 shares of Common Stock, of which 8,071,144
shares will be issued and outstanding, and 1,000,000 shares of Preferred Stock,
none of which will be outstanding. The Shares are duly authorized, and, when
issued to Buyer pursuant to the terms of this Agreement, will be validly issued,
fully paid and nonassessable and will be issued in compliance with the
registration and qualification requirements of all applicable securities laws.
The issued and outstanding shares of capital stock of the Company are all duly
authorized, validly issued, fully paid and
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August 3, 2000
Page 3

nonassessable, and were issued in compliance with the registration and
qualification requirements of all applicable securities laws.

          (h)  Financial Statements.  The financial statements of the Company
               --------------------
(balance sheet and statements of operations, cash flows and shareholders'
equity, together with the notes thereto) for the fiscal year ended June 30, 1999
and the three quarters ended March 31, 2000 (the "Financial Statements") are
complete and correct in all material respects and have been prepared in
accordance with GAAP applied on a consistent basis throughout the periods
indicated and with each other. The Financial Statements fairly present in all
material respects the financial position, operating results and cash flows of
the Company as of the dates and for the respective periods indicated.

     4.   Representations/Warranties and Covenants of the Buyer.  The Buyer
          -----------------------------------------------------
represents, warrants and covenants to Buyer as follows:

          (a)  Accredited Investor/Securities Laws.  Buyer is an accredited
               -----------------------------------
investor within the meaning of Securities and Exchange Commission Rule 501(a).
Buyer understands that the Shares have not been registered under the Securities
Act of 1933, as amended (the "Securities Act"), or under the laws of any other
jurisdiction and that the Company does not contemplate registering the Shares.
Buyer understands that the Shares may not be sold, transferred, pledged or
otherwise disposed of unless they are subsequently registered under the
Securities Act and, where required, under the laws of other jurisdictions or an
exemption from registration is available and the Company has received an opinion
of counsel satisfactory to the Company to that effect. Buyer is acquiring the
Shares solely for his own account, solely for investment not with a view to or
for resale, distribution or other disposition. Buyer has made no contract,
undertaking, agreement or arrangement, and has no plans to enter into any
contract, undertaking, agreement or arrangement for any resale, distribution or
disposition of the Shares. Buyer agrees that none of the Shares will be resold
in the absence of either an effective registration statement covering the Shares
under the Securities Act or an opinion of counsel satisfactory to the Company
that registration is not required under the Securities Act or under applicable
laws of any other jurisdiction.

          (b)  Permitted Transfers.  Notwithstanding anything in this Section 4
               -------------------
to the contrary, the Company acknowledges that Buyer may transfer a portion of
the Shares, with or without consideration therefor, to (1) other individuals to
induce them to join the senior management team of the Company, (2) to immediate
family members and children of immediate family members, or entities for which
such individuals are beneficiaries, in connection with estate planning, and
Buyer shall not require a legal opinion with respect to any such transfer.

          (c)  Restrictive Legend.  Buyer understands that the certificates
               ------------------
representing the Shares will bear the restrictive legend set forth below:

     "The securities represented by this certificate have not been registered
     under the Securities Act of 1933, as amended, under the Virginia Securities
     Act, or under the securities acts of any other state or jurisdiction.  No
     sale, offer to sell or other transfer of these securities may be made
     unless pursuant to an effective registration statement, or unless in the
     opinion of counsel to the issuer the
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August 3, 2000
Page 4

     proposed disposition may be made pursuant to a valid exemption from the
     registration provisions of these Acts."

          (d)  The terms of this Agreement do not conflict with any agreement to
which the Buyer is a party. Without limiting the generality of the foregoing,
the Buyer is not under any obligation under the terms of a noncompetition or
other agreement that will restrict Buyer's ability to serve as Chief Executive
Officer of the Company.

     5.   Conditions to the Obligation of Buyer to Close.  The obligation of
          ----------------------------------------------
Buyer to purchase the Shares shall be subject to the satisfaction as determined
by, or waiver by, Buyer of the following conditions on or before the Closing
Date:

          (a)  Refinancing.  The Company shall have received the form of
               -----------
commitment letter attached hereto as Exhibit A (the "Commitment Letter") duly
                                     ---------
executed by all of the parties thereto and shall have received the sum of
$2,500,000 in the Bridge Loan financing contemplated by numbered paragraph 3
thereof.

          (b)  Representation and Warranties.  The representations and
               -----------------------------
warranties of the Company contained in Section 2 hereof shall be true and
correct in all material respects at and on the Closing Date as if made at and on
such date.

          (c)  Compliance with this Agreement.  The Company shall have performed
               ------------------------------
and complied in all material respects with all of its agreements and conditions
set forth herein that are required to be performed or complied with by the
Company on or before the Closing Date.

          (d)  Bankruptcy.  The Company shall not have filed a petition for
               ----------
bankruptcy, reorganization or rearrangement under any federal or state
bankruptcy or insolvency laws, or any third party shall not have filed, or
threatened to file, any such involuntary petition against the Company.

          (e)  Foreclosure.  No creditor shall have commenced any foreclosure
               -----------
proceedings against any assets of the Company.

          (f)  No Commitment to Issue Additional Securities.  Except as set
               --------------------------------------------
forth on Schedule 5(f) hereto and as contemplated by the terms of the Commitment
         -------------
Letter, there shall be no existing contracts, agreements or understandings
obligating the Company to issue additional equity securities in the Company.

          (g)  No Material Adverse Event.  There shall have been no events that
               -------------------------
have been materially adverse to the Company's business, results of operations or
financial condition.

          (h)  Secretary's Certificate.  Buyer shall have received a certificate
               -----------------------
from the Company, in form and substance satisfactory to Buyer, dated the Closing
Date and signed by the Secretary or an Assistant Secretary of the Company,
certifying (a) that the attached copies of the Articles of Incorporation, the
Bylaws and resolutions of the Board of Directors of the Company approving this
Agreement and the transactions contemplated hereby, are true, complete and
correct and remain unamended and in full force and effect and (b) as to the
incumbency and
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August 3, 2000
Page 5

specimen signature of each officer of the Company executing this Agreement and
any other document delivered in connection herewith on behalf of the Company.

          (i)  Officer's Certificate.  Buyer shall have received a certificate
               ---------------------
from the Company, in form and substance satisfactory to Buyer, dated the Closing
Date and signed by the Chief Executive Officer of the Company, certifying (a)
the representations and warranties of the Company contained in Section 2 hereof
are true and correct in all material respects at and on the Closing Date and (b)
the Company has performed and complied in all material respects with all of the
agreements and conditions set forth or contemplated herein that are required to
be performed or complied with by the Company on or before the Closing Date.

          (j)  Purchased Shares.  The Company shall have delivered to Buyer a
               ----------------
certificate in definitive form representing the Shares purchased by Buyer on the
Closing Date.

          (k)  Registration Rights.  The Company shall have executed a
               -------------------
registration rights agreement with the Buyer in the form attached hereto as
Exhibit B.
---------

          (l)  Board Approval.  The transactions contemplated by this Agreement,
               --------------
including the issuance and sale of the Shares, shall have been duly approved by
the Company's Board of Directors, including a majority of the disinterested
directors.

     6.   Conditions to the Obligation of the Company to Close.  The obligation
          ----------------------------------------------------
of the Company to issue, sell and deliver the Shares to Buyer shall be subject
to delivery by Buyer to the Company of $750,000 in immediately available funds.
The Company shall also have received the Commitment Letter duly executed by all
of the parties thereto, and received the sum of $2,500,000 in Bridge Loan
financing contemplated by numbered paragraph 3 thereof.

     7.   Termination of Agreement.  This Agreement may be terminated prior to
          ------------------------
the Closing Date as follows:

          (a)  at any time on or prior to the Closing Date, by mutual written
consent of the Company and Buyer; or

          (b)  at the election of either the Company or Buyer by written notice
to the other party after 5:00 p.m., Richmond, Virginia, time on August __, 2000,
if the transactions contemplated by this Agreement shall not have been
consummated pursuant hereto unless such date is extended by the mutual written
consent of the Company and Buyer.

If this Agreement so terminates, it shall become null and void and have no
further force or effect.

     8.   Miscellaneous.
          -------------

          (a)  Survival of Representations and Warranties.  All of the
               ------------------------------------------
representations and warranties made herein shall survive the execution and
delivery of this Agreement for a period of two years.

          (b)  Publicity.  Buyer and Company will consult with each other before
               ---------
holding any press conferences, analyst calls or other meetings or discussions
and before issuing
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August 3, 2000
Page 6

any press releases or other public announcements or statements regarding the
transactions contemplated herein. The parties will provide each other the
reasonable opportunity to review and comment upon any press release or other
public announcement or statement with respect to the transactions contemplated
by this Agreement and shall not issue any such press release or other public
announcement or statement prior to such consultation, except as may be required
by applicable law. The parties agree that the initial press release or releases
to be issued with respect to the transactions contemplated by this Agreement
shall be mutually agreed upon prior to the issuance thereof.

          (c)  Notices.  All notices, demands and other communications provided
               -------
for or permitted hereunder shall be made in writing and shall be by registered
or certified first-class mail, return receipt requested, telecopier, courier
service or personal delivery:

               (i)  if to the Company:
                    Precision Auto Care, Inc.
                    748 Miller Drive, S.E.
                    Leesburg, Virginia 20175
                    Attention:
                    Facsimile:

               with a copy to:

                    Miles & Stockbridge P.C.
                    10 Light Street
                    Baltimore, Maryland 21202
                    Attention:  John B. Frisch
                    Facsimile:  (410) 385-3700

                    and

               (ii) if to Buyer:
                    Louis M. Brown, Jr.
                    4801 Maury Lane
                    Alexandria, Virginia 22304
                    Facsimile:  703-923-4021

               with a copy to:

                    Hunton & Williams
                    951 East Byrd Street
                    Richmond, Virginia 23219
                    Attention:  Thurston R. Moore
                    Facsimile:  (804) 788-8218
<PAGE>

August 3, 2000
Page 7

     All such notices and communications shall be deemed to have been duly given
when delivered by hand, if personally delivered; when delivered by courier, if
delivered by commercial courier service; five Business Days after being
deposited in the mail, postage prepaid, if mailed; and when receipt is
mechanically acknowledged, if telecopied.

          (d)  Successors and Assigns; Third Party Beneficiaries.  This
Agreement shall inure to the benefit of and be binding upon the successors and
permitted assigns of the parties hereto. Subject to applicable securities laws
Buyer may assign any of his continuing rights under this Agreement pursuant to
transfers of a portion of the Shares in accordance with Section 4 hereof. The
Company may not assign any of their rights under this Agreement without the
written consent of Buyer. No Person other than the parties hereto and their
successors and permitted assigns is intended to be a beneficiary of this
Agreement

          (e)  Amendment and Waiver.
               --------------------

               (i)  No failure or delay on the part of the Company or Buyer in
     exercising any right, power or remedy hereunder shall operate as a waiver
     thereof, nor shall any single or partial exercise of any such right, power
     or remedy preclude any other or further exercise thereof or the exercise of
     any other right, power or remedy. The remedies provided for herein are
     cumulative and are not exclusive of any remedies that may be available to
     the Company or Buyer at law, in equity or otherwise.

               (ii) Any amendment, supplement or modification of or to any
     provision of this Agreement, any waiver of any provision of this Agreement,
     and any consent to any departure by the Company or Buyer from the terms of
     any provision of this Agreement, shall be effective (i) only if it is made
     or given in writing and signed by the Company and Buyer, and (ii) only in
     the specific instance and for the specific purpose for which made or given.
     Except where notice is specifically required by this Agreement, no notice
     to or demand on the Company in any case shall entitle the Company to any
     other or further notice or demand in similar or other circumstances.

          (f)  Counterparts; Facsimile.  This Agreement may be executed in any
               -----------------------
number of counterparts and by the parties hereto in separate counterparts, each
of which when so executed shall be deemed to be an original and all of which
taken together shall constitute one and the same agreement, and may be delivered
to the other parties hereto by facsimile.

          (g)  Headings.  The headings in this Agreement are for convenience of
               --------
reference only and shall not limit or otherwise affect the meaning hereof.

          (h)  Governing Law.  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
               -------------
IN ACCORDANCE WITH THE LAWS OF THE COMMONWEALTH OF VIRGINIA, WITHOUT REGARD TO
THE PRINCIPLES OF CONFLICTS OF LAW THEREOF.

          (i)  Severability.  If any one or more of the provisions contained
herein, or the application thereof in any circumstance, is held invalid, illegal
or unenforceable in any respect for any reason, the validity, legality and
enforceability of any such provision in every other respect and of the remaining
provisions hereof shall not be in any way impaired, unless the
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August 3, 2000
Page 8

provisions held invalid, illegal or unenforceable shall substantially impair the
benefits of the remaining provisions hereof.

          (j)  Rules of Construction.  Unless the context otherwise requires,
               ---------------------
references to sections or subsections refer to sections or subsections of this
Agreement.

          (k)  Entire Agreement.  This Agreement is intended by the parties as a
               ----------------
final expression of their agreement and intended to be a complete and exclusive
statement of the agreement and understanding of the parties hereto in respect of
the subject matter contained herein and therein. There are no restrictions,
promises, representations, warranties or undertakings, other than those set
forth or referred to herein or therein. This Agreement supersedes all prior
agreements and understandings between the parties with respect to such subject
matter.

          (l)  Further Assurances.  Each of the parties shall execute such
               ------------------
documents and perform such further acts (including, without limitation,
obtaining any consents, exemptions, authorizations or other actions by, or
giving any notices to, or making any filings with, any governmental authority or
any other third party) as may be reasonably required or desirable to carry out
or to perform the provisions of this Agreement.
<PAGE>

August 3, 2000
Page 9

     If you are in agreement with the foregoing, please so acknowledge by
executing the enclosed copy of this Agreement and returning it to the
undersigned by 5:00 p.m., Eastern Standard Time, on August 3, 2000.

                              Very truly yours,

                              /s/ Louis M. Brown, Jr.

                              Louis M. Brown, Jr.

ACCEPTED AND AGREED
as of August __, 2000

PRECISION AUTO CARE, INC.

By: ______________________
    Name:
    Title:
<PAGE>

August 3, 2000
Page 10

                                                                   SCHEDULE 5(f)

Existing Contracts, Agreements or Understandings Obligating the Company to Issue
--------------------------------------------------------------------------------
Additional Equity Securities.
----------------------------

     (a)  Stock Options Held by Officers, Directors and Employees:

     .    The Company has issued options to purchase 742,875 shares of the
          Company's Common Stock pursuant various stock options plans and
          private agreements with individual officers, directors and employees.

     .    175,000 shares of Common Stock have been reserved for issuance under
          the Precision Tune Stock Option Plan, adopted September 28, 1995, and
          amended and restated August 27, 1997. 135,500 shares are available for
          additional grants under this plan, which expires September 28, 2005.

     .    400,000 shares of Common Stock have been reserved for issuance under
          the 1997 Precision Auto Care Stock Option Plan, adopted November 5,
          1997. 198,000 shares are available for additional grants under this
          plan, which expires November 5, 2007.

     .    600,000 shares of Common Stock have been reserved for issuance under
          the 1999 Precision Auto Care Employee Stock Option and Restricted
          Stock Plan, adopted March 31, 1999. 131,125 shares are available for
          additional option grants and restricted stock awards under this plan,
          which expires March 31, 2009.

     .    75,000 shares of Common Stock have been reserved for issuance under
          the Precision Auto Care, Inc. 1998 Outside Directors' Stock Option
          Plan. Pursuant to the terms of this plan on the date of the company's
          on the date of each annual meeting of shareholders, options to
          purchase 2,500 shares are automatically due to be issued to each of
          those outside directors who had served for the preceding year. No
          options have yet been officially issued under the plan, which expires
          January 27, 2007. However, the Company has outstanding obligations to
          issue options for 15,900 shares under this plan.

     (b)  Restricted Stock Awards:

     .    As noted above, 600,000 shares of Common Stock have been reserved for
          issuance under the Precision Auto Care Stock Option and Restricted
          Stock Plan, adopted March 31, 1999. 131,125 shares are available for
          additional option grants and restricted stock awards under this plan,
          which expires March 31, 2009. To date the Company has awarded a total
          of 77,500 shares of restricted stock. Under the terms of each award,
          the right, title and interest to such shares will not vest until March
          2002, unless the Company's share price reaches certain specified
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August 3, 2000
Page 11

               levels. To date 21,250 of the shares awarded have vested and
               certificates have been issued to the recipients.

          .    By private agreement in March 1999, the Company awarded 45,000
               shares of restricted stock to its outside directors in lieu of
               cash fees owed to them. Under the terms of the award, the right,
               title and interest to such shares will not vest until March 2002,
               unless the Company's share price reached certain levels. To date
               11,250 of the shares awarded have vested and certificates have
               been issued to the recipients.

          .    By private agreement in June 2000, the Company agreed to award
               25,000 shares of restricted stock to Arthur C. Kellar in
               connection with his agreement to amend an outstanding
               Subordinated Debenture. These shares have not yet been issued. In
               the same transaction the Company also agreed, that subject to
               shareholder approval, it would grant Mr. Kellar 25,000 shares of
               stock for each $100,000 drawn upon a letter of credit Mr. Kellar
               took out to support an appeal bond posted on behalf of the
               Company.<PAGE>

                                                                    EXHIBIT 10.3

                         REGISTRATION RIGHTS AGREEMENT
                         -----------------------------

This REGISTRATION RIGHTS AGREEMENT (this "Agreement") is made and entered into
as of August 4, 2000, by and among Precision Auto Care, Inc., a Virginia
corporation (the "Company") and Louis M. Brown, Jr., Arthur Kellar and
Desarrollo Integrado, S.A. de C.V. (the "Investors").

                                   RECITALS
                                   --------

     A.    Louis M. Brown, Jr. has agreed to purchase from the Company, and the
Company has agreed to sell to Mr. Brown, 1,700,000 shares of the Company's
common stock (the "Common Stock") on the terms and conditions set forth in that
certain letter agreement, dated of even date herewith, by and among the Company
and Mr. Brown (the "Letter Agreement").  Capitalized terms used but not defined
herein shall have the meaning given such terms in the Letter Agreement.

     B.    Arthur Kellar and Desarrollo Integrado, S.A. de C.V. have agreed to
make available to the Company a credit facility of $11,250,000 (the "Credit
Facility") to refinance existing debt and provide for the Company's working
capital needs, and in exchange therefor, the Company will issue to each of Mr.
Kellar and Dessarrollo Integrado warrants to purchase 1,000,000 shares of Common
Stock.

     C.    As an inducement to enter into the Letter Agreement and the Credit
Facility, the Company agreed to provides that the Investors shall be granted
certain registration rights, all as more fully set forth herein.

                                   AGREEMENT
                                   ---------

     NOW, THEREFORE, in consideration of the foregoing recitals and the mutual
promises hereinafter set forth, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

1.   REGISTRATION RIGHTS.
     -------------------

     1.1.  Definitions.
           -----------

           (a)  Registration.  The terms "register," "registered," and
                ------------
"registration" refer to a registration effected by preparing and filing a
registration statement in compliance with the Securities Act, and the
declaration or ordering of effectiveness of such registration statement.

           (b)  Registrable Securities.  The term "Registrable Securities"
                ----------------------
means: (1) all the shares of Common Stock issued to Louis M. Brown, Jr. pursuant
to the Letter Agreement; (2) all the shares of Common Stock to be issued to
Arthur C. Kellar and Desarrollo Integrado, S.A. de C.V. upon exercise of the
Warrants; and (3) any shares of Common Stock of the Company issued
<PAGE>

as (or issuable upon the conversion or exercise of any warrant, right or other
security which is issued as) a dividend or other distribution with respect to,
or in exchange for or in replacement of, all such shares of Common Stock
described in clauses (1) through (2) of this Section 1.1(b); excluding in all
cases, however, any Registrable Securities sold by a person in a transaction in
which rights under this Section 1 are not assigned in accordance with this
Agreement or any Registrable Securities sold to the public pursuant to an
offering registered under The Securities Act of 1933, as amended (the
"Securities Act") or sold pursuant to Rule 144 promulgated under the Securities
Act.

          (c)  Registrable Securities Then Outstanding.  The number of shares of
               ---------------------------------------
"Registrable Securities then outstanding" shall mean the number of shares of
Common Stock which are Registrable Securities and (1) are then issued and
outstanding or (2) are then issuable pursuant to the exercise or conversion of
then outstanding and then exercisable options, warrants or convertible
securities.

          (d)  Holder.  The term "Holder" means the Investors and any assignee
               ------
of record of such Registrable Securities to whom rights under this Section 1
have been duly assigned in accordance with this Agreement.

          (e)  Form S-3.  The term "Form S-3" means such form under the
               --------
Securities Act as is in effect on the date hereof or any successor registration
form under the Securities Act subsequently adopted by the SEC which permits
inclusion or incorporation of substantial information by reference to other
documents filed by the Company with the SEC.

          (f)  SEC.  The term "SEC" or "Commission" means the U.S. Securities
               ---
and Exchange Commission.

     1.2.  Demand Registration.
           -------------------

          (a)  Request by Holders.  If the Company shall receive at any time
               ------------------
after the date hereof, a written request from Holders holding more than 10% of
the Registrable Securities then outstanding that the Company file a registration
statement under the Securities Act covering the resale of the Registrable
Securities pursuant to this Section 1.2, then the Company shall, within ten (10)
business days of the receipt of such written request, give written notice of
such request ("Request Notice") to all Holders, and effect, as soon as
practicable, the registration under the Securities Act and any applicable blue
sky law the resale of all Registrable Securities which Holders request to be
registered and included in such registration by written notice given by such
Holders to the Company within thirty (30) days after receipt of the Request
Notice, subject only to the limitations of this Section 1.2.

          (b)  Underwriting.  If the Holders initiating the registration request
               ------------
under this Section 1.2 ("Initiating Holders") intend to distribute the
Registrable Securities covered by their request by means of an underwriting,
then they shall so advise the Company as a part of their request made pursuant
to this Section 1.2 and the Company shall include such information in the
written notice referred to in Section 1.2(a). In such event, the right of any
Holder to include its Registrable Securities in such registration shall be
conditioned upon such Holder's participation in such underwriting and the
inclusion of such Holder's Registrable Securities in the underwriting

                                      -2-
<PAGE>

(unless otherwise mutually agreed by a majority in interest of the Initiating
Holders and such Holder) to the extent provided herein. All Holders proposing to
distribute their securities through such underwriting shall enter into an
underwriting agreement in customary form with the managing underwriter or
underwriters selected for such underwriting by the Company and a majority in
interest of the Initiating Holders. Notwithstanding any other provision of this
Section 1.2, if the underwriter(s) advise(s) the Company in writing that
marketing factors require a limitation of the number of securities to be
underwritten then the Company shall so advise all Holders of Registrable
Securities which would otherwise be registered and underwritten pursuant hereto,
and the number of Registrable Securities that may be included in the
underwriting shall be reduced as required by the underwriter(s) and allocated
among the Holders of Registrable Securities on a pro rata basis according to the
number of Registrable Securities then outstanding held by each Holder requesting
registration (including the Initiating Holders); provided, however, that the
number of shares of Registrable Securities to be included in such underwriting
and registration shall not be reduced unless all other securities of the Company
are first entirely excluded from the underwriting and registration. Any
Registrable Securities excluded and withdrawn from such underwriting shall be
withdrawn from the registration.

          (c)  Maximum Number of Demand Registrations.  The Company shall not be
               --------------------------------------
obligated to effect any registration pursuant to this Section 1.2: (1) at any
time prior to February 1, 2001, (2) at any time after the fifth anniversary of
this Agreement, (3) at any time within six months after a registration statement
filed pursuant to this Section 1.2 is declared effective by the SEC, or (4) at
any time after four registration statements filed pursuant to this Section 1.2
have been declared effective by the SEC. A registration will not count as one of
the registrations permitted under this Section 1.2 until it has been declared
effective by the SEC and unless the Holders of Registrable Securities who have
requested that some or all of their shares be registered are able to register
and sell at least 75% of the Registrable Securities requested to be included in
such registration.

          (d)  Deferral.  Notwithstanding the foregoing, if the Company shall
               --------
furnish to Initiating Holders a certificate signed by the President or Chief
Executive Officer of the Company stating that in the good faith judgment of the
Board of Directors of the Company, it would be seriously detrimental to the
Company and its shareholders for such registration statement to be filed and it
is therefore in the Company's best interest to defer the filing of such
registration statement, then the Company shall have the right to defer such
filing for a period of not more than 120 days after receipt of the request of
the Initiating Holders; provided, however, that the Company may not utilize this
right more than once in any twelve (12) month period; provided further, that
upon such deferral, the requested registration will not count as one of the
registrations permitted under this Section 1.2 until such time as such deferred
registration statement shall have been declared effective by the SEC and the
shares registered thereunder have been sold (unless.

          (e)  Expenses.  All expenses incurred in connection with a
               --------
registration pursuant to this Section 1.2, including without limitation all
Federal and "blue sky" registration and qualification fees, printers' and
accounting fees, fees and disbursements of counsel for the Company, and the
reasonable fees and disbursements of one counsel for the selling Holders
selected by Holders holding a majority of the Registrable Securities to be
included in such underwriting and expenses of the underwriter (but excluding
underwriters' discounts and commissions and other expenses customarily borne by
the underwriters and not customarily

                                      -3-
<PAGE>

reimbursed by the issuer or selling security holders), shall be borne by the
Company. Each Holder participating in a registration pursuant to this Section
1.2 shall bear such Holder's proportionate share (based on the total number of
shares sold in such registration other than for the account of the Company) of
all discounts and commissions payable to underwriters in connection with such
offering. Notwithstanding the foregoing, the Company shall not be required to
pay for any expenses of any registration proceeding begun pursuant to this
Section 1.2 if the registration request is subsequently withdrawn at the request
of the Holders of a majority of the Registrable Securities to be registered;
provided, however, that if at the time of such withdrawal, the Holders have
learned of a material adverse change in the condition, business, or prospects of
the Company not known to the Holders at the time of their request for such
registration and have withdrawn their request for registration with reasonable
promptness after learning of such material adverse change, then the Holders
shall not be required to pay any of such expenses and shall retain their rights
pursuant to this Section 1.2.

     1.3. Piggyback Registrations.  The Company shall notify all Holders in
          -----------------------
writing at least thirty (30) days prior to filing any registration statement
under the Securities Act for purposes of effecting a public offering of
securities of the Company (including, but not limited to, registration
statements relating to secondary offerings of securities of the Company, but
excluding registration statements relating to any registration under Section 1.2
or Section 1.4 of this Agreement or to any employee benefit plan or a corporate
acquisition, merger or reorganization) and will afford each such Holder an
opportunity to include in such registration statement all or any part of the
Registrable Securities then held by such Holder. Each Holder desiring to include
in any such registration statement all or any part of the Registrable Securities
held by such Holder shall, within fifteen (15) days after receipt of the above-
described notice from the Company, so notify the Company in writing, and in such
notice shall inform the Company of the number of Registrable Securities such
Holder wishes to include in such registration statement. If a Holder decides not
to include all of its Registrable Securities in any registration statement
thereafter filed by the Company, such Holder shall nevertheless continue to have
the right to include any Registrable Securities in any subsequent registration
statement or registration statements as may be filed by the Company with respect
to offerings of its securities, all upon the terms and conditions set forth
herein.

          (a)  Underwriting.  If a registration statement under which the
               ------------
Company gives notice under this Section 1.3 is for an underwritten offering,
then the Company shall so advise the Holders of Registrable Securities. In such
event, the right of any such Holder's Registrable Securities to be included in a
registration pursuant to this Section 1.3 shall be conditioned upon such
Holder's participation in such underwriting and the inclusion of such Holder's
Registrable Securities in the underwriting to the extent provided herein. All
Holders proposing to distribute their Registrable Securities through such
underwriting shall enter into an underwriting agreement in customary form with
the managing underwriter or underwriter(s) selected for such underwriting.
Notwithstanding any other provision of this Agreement, if the managing
underwriter(s) determine in good faith that marketing factors require a
limitation of the number of shares to be underwritten, then the managing
underwriter(s) may exclude shares (including Registrable Securities) from the
registration and the underwriting, and the number of shares that may be included
in the registration and the underwriting shall be allocated, first, to the
                                                             -----
Company, and second, to each of the Holders requesting inclusion of their
             ------
Registrable Securities in such registration statement on a pro rata basis
according to the total number of Registrable Securities

                                      -4-
<PAGE>

then requested to be registered by each such Holder, provided, however, that the
right of the underwriters to exclude shares (including Registrable Securities)
from the registration and underwriting as described above shall be restricted so
that (i) the number of Registrable Securities included in any such registration
is not reduced below twenty-five percent (25%) of the shares included in the
registration; and (ii) all shares that are not Registrable Securities and are
held by persons who are employees or directors of the Company (or any subsidiary
of the Company) shall first be excluded from such registration and underwriting
before any Registrable Securities are so excluded. If any Holder disapproves of
the terms of any such underwriting, such Holder may elect to withdraw therefrom
by written notice to the Company and the underwriter, delivered at least ten
(10) business days prior to the effective date of the registration statement.
Any Registrable Securities excluded or withdrawn from such underwriting shall be
excluded and withdrawn from the registration.

          (b)  Expenses.  All expenses incurred in connection with a
               --------
registration pursuant to this Section 1.3 (excluding underwriters' and brokers'
discounts and commissions and other expenses customarily borne by the
underwriters and not customarily reimbursed by the issuer or selling security
holders), including, without limitation all federal and "blue sky" registration
and qualification fees, printers' and accounting fees, fees and disbursements of
counsel for the Company and reasonable fees and disbursements of counsel for the
selling Holders (selected by selling Holders holding a majority of the
Registrable Securities) shall be borne by the Company.

     1.4. Form S-3 Registration.  At which time as the Company becomes eligible
          ---------------------
to use Form S-3 for the registration of its securities, in case the Company
shall receive from any Holder or Holders a written request or requests that the
Company effect a registration on Form S-3 and any related qualification or
compliance with respect to all or a part of the Registrable Securities owned by
such Holder or Holders, then the Company will:

          (a)  Notice.  Promptly give written notice of the proposed
               ------
registration and the Holder's or Holders' request therefor, and any related
qualification or compliance, to all other Holders; and

          (b)  Registration. As soon as practicable, effect such registration
               ------------
and all such qualifications and compliances as may be so requested and as would
permit or facilitate the sale and distribution of all or such portion of such
Holder's or Holders' Registrable Securities as are specified in such request,
together with all or such portion of the Registrable Securities of any other
Holder or Holders joining in such request as are specified in a written request
given within twenty (20) days after receipt of such written notice from the
Company; provided, however, that the Company shall not be obligated to effect
any such registration, qualification or compliance pursuant to this Section 1.4:

          (1)  if Form S-3 is not available for such offering by the Holders;
     provided, that the Company will use all commercially reasonable efforts to
     make Form S-3 available for sale of Registrable Securities;

          (2)  if the Company shall furnish to the Holders a certificate signed
     by the President or Chief Executive Officer of the Company stating that in
     the good faith judgment

                                      -5-
<PAGE>

     of the Board of Directors of the Company, it would be seriously detrimental
     to the Company and its shareholders for such Form S-3 registration to be
     effected at such time, in which event the Company shall have the right to
     defer the filing of the Form S-3 registration statement no more than once
     during any twelve month period for a period of not more than 120 days after
     receipt of the request of the Holder or Holders under this Section 1.4;

          (3)  if the Company has, within the six (6) month period preceding the
     date of such request, already effected a registration for the Holders
     pursuant to this Agreement;

          (4)  in any particular jurisdiction in which the Company would be
     required to qualify to do business or to execute a general consent to
     service of process in effecting such registration, qualification or
     compliance; or

          (5)  if the Registrable Securities to be included in such registration
     do not represent at least 10% of the Registrable Securities then
     outstanding.

          (c)  Expenses.  Subject to the foregoing, the Company shall file a
               --------
Form S-3 registration statement covering the Registrable Securities and other
securities so requested to be registered pursuant to this Section 1.4 as soon as
practicable after receipt of the request or requests of the Holders for such
registration. The Company shall pay all expenses incurred in connection with
each registration requested pursuant to this Section 1.4, (excluding
underwriters' or brokers' discounts and commissions with respect to the Holders'
Registrable Securities and other expenses customarily borne by the underwriters
and not customarily reimbursed by the issuer or selling security holders),
including without limitation all filing, registration and qualification,
printers' and accounting fees and the reasonable fees and disbursements of one
counsel for the selling Holder or Holders and counsel for the Company.

          (d)  Not Demand Registration.  Form S-3 registrations shall not be
               -----------------------
deemed to be demand registrations as described in Section 1.2 above.

     1.5. Obligations of the Company.  Whenever required, upon request in
          --------------------------
accordance with this Section 1.5, to effect the registration of any Registrable
Securities under this Agreement, the Company shall, as expeditiously as
reasonably possible:

          (a)  Prepare and file with the SEC a registration statement with
respect to such Registrable Securities and use all commercially reasonable
efforts to cause such registration statement to become effective; provided,
however, that, to the extent practicable, at least five (5) Business Days prior
to filing any registration statement or prospectus or any amendments or
supplements thereto, the Company will furnish to the Holders of the Registrable
Securities covered by such registration statement and their counsel, copies of
all such documents proposed to be filed and any such Holder shall have the
opportunity to comment on any information pertaining solely to such Holder and
its plan of distribution that is contained therein and the Company shall make
the corrections reasonably requested by such Holder with respect to such
information prior to filing any such registration statement or amendment and,
upon the request of the Holders of a majority of the Registrable Securities
registered thereunder, keep such registration statement effective for up to
ninety (90) days.

                                      -6-
<PAGE>

          (b)  Prepare and file with the SEC such amendments and supplements to
such registration statement and the prospectus used in connection with such
registration statement as may be necessary to comply with the provisions of the
Securities Act with respect to the disposition of all securities covered by such
registration statement.

          (c)  Furnish upon request, to each Holder of Registrable Securities to
be included in such registration and the underwriter or underwriters, if any,
without charge, at least one signed copy of the registration statement and any
post-effective amendment thereto and such number of copies of a prospectus,
including a preliminary prospectus and each prospectus filed under Rule 424
under the Securities Act, in conformity with the requirements of the Securities
Act, and such other documents as they may reasonably request in order to
facilitate the disposition of the Registrable Securities owned by them that are
included in such registration (it being understood that the Company consents to
the use of the prospectus and any amendment or supplement thereto by each Holder
of Registrable Securities covered by such registration statement and the
underwriter or underwriters, if any, in connection with an underwritten public
offering and sale of the Registrable Securities covered by the prospectus or any
amendment or supplement thereto).

          (d)  Notify each Holder of the Registrable Securities to be included
in such registration and the underwriter or underwriters, if any:

          (1)  of any stop order or other order suspending the effectiveness of
     any registration statement, issued or threatened by the SEC in connection
     therewith, and take all necessary actions required to prevent the entry of
     such stop order or to remove it or obtain withdrawal of it at the earliest
     possible moment if entered;

          (2)  when such registration statement or any prospectus used in
     connection therewith, or any amendment or supplement thereto, has been
     filed and, with respect to such registration statement or any post-
     effective amendment thereto, when the same has become effective;

          (3)  of any written request by the SEC for amendments or supplements
     to such registration statement or prospectus; and

          (4)  of the receipt by the Company of any notification with respect to
     the suspension of the qualification of any Registrable Securities for sale
     under the applicable securities or blue sky laws of any jurisdiction.

          (e)  If requested by the managing underwriter or underwriters or any
Holder of Registrable Securities to be included in such registration in
connection with any sale pursuant to a registration statement, promptly
incorporate in a prospectus supplement or post-effective amendment such
information relating to such underwriting as the managing underwriter or
underwriters or such holder reasonably requests to be included therein; and make
all required filings of such prospectus supplement or post-effective amendment
as soon as practicable after being notified of the matters incorporated in such
prospectus supplement or post-effective amendment;

          (f)  In connection with any sale pursuant to a registration, cooperate
with the Holders of Registrable Securities to be included in such registration
and the managing

                                      -7-
<PAGE>

underwriter or underwriters, if any, to facilitate the timely preparation and
delivery of certificates (not bearing any restrictive legends) representing
securities sold under such registration, and enable such securities to be in
such denominations and registered in such names as the managing underwriter or
underwriters, if any, or such holders may request;

          (g)  Use all commercially reasonable efforts to cause the Registrable
Securities to be registered with or approved by such other governmental agencies
or authorities within the United States and having jurisdiction over the Company
as may be necessary to enable the seller or sellers thereof or the underwriter
or underwriters, if any, to consummate the disposition of such securities (it
being understood that the Company shall not be required to qualify to do
business or execute a general consent of service of process in any
jurisdiction);

          (h)  Otherwise comply with all applicable rules and regulations of the
SEC, and make generally available to its security holders (as contemplated by
Section 11(a) under the Securities Act) an earnings statement satisfying the
provisions of Rule 158 under the Securities Act no later than ninety (90) days
after the end of the twelve (12) month period beginning with the first month of
the Company's first fiscal quarter commencing after the effective date of the
registration statement, which statement shall cover said twelve (12) month
period;

          (i)  Provide and cause to be maintained a transfer agent and registrar
for all Registrable Securities covered by each registration from and after a
date not later than the effective date of such registration;

          (j)  Use all commercially reasonable efforts to cause all Registrable
Securities covered by each registration to be listed subject to notice of
issuance, prior to the date of first sale of such Registrable Securities
pursuant to such registration, on each securities exchange on which the Common
Stock is then listed (or is admitted to trading on Nasdaq, if the Common Stock
are then admitted to trading on Nasdaq);

          (k)  In the case of underwritten offerings, to cause its employees and
personnel to use their reasonable efforts to support the marketing of the
Registrable Securities (including, without limitation, the participation in
"road shows," at the request of the underwriters or the holders of a majority of
the Registrable Securities to be included in such registration) to the extent
possible taking into account the Company's business needs and the requirements
of the marketing process (it being understood that the Company's employees other
than the Holders will not be required to devote more than five business days to
performing the obligations under this subparagraph (k));

          (l)  Use all commercially reasonable efforts to register and qualify
the securities covered by such registration statement under such other
securities or blue sky laws of such jurisdictions as shall be reasonably
requested by the Holders and to otherwise comply with the securities and blue
sky laws (it being understood that the Company shall not be required to qualify
to do business or execute a general consent of service of process in any
jurisdiction);

          (m)  In the event of any underwritten public offering, enter into and
perform its obligations under an underwriting agreement, in usual and customary
form, with the managing underwriter(s) of such offering;

                                      -8-
<PAGE>

          (n)  Notify each Holder of Registrable Securities covered by such
registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act of the happening of any event
as a result of which the prospectus included in such registration statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in light of the circumstances then existing
and promptly prepare and file with the SEC and furnish to such seller or Holder
a reasonable number of copies of a supplement to or an amendment of such
prospectus as may be necessary so that, as thereafter delivered to the
purchasers or prospective purchasers of such securities, such prospectus shall
not include an untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading in the light of the circumstances under which they are made;

          (o)  Furnish, at the request of any Holder requesting registration of
Registrable Securities, on the date that such Registrable Securities are
delivered to the underwriters for sale, if such securities are being sold
through underwriters, or, if such securities are not being sold through
underwriters, on the date that the registration statement with respect to such
securities becomes effective, (i) an opinion, dated as of such date, of the
counsel representing the Company for the purposes of such registration, in form
and substance as is customarily given to underwriters in an underwritten public
offering and reasonably satisfactory to a majority in interest of the Holders
requesting registration, addressed to the underwriters, if any, and to the
Holders requesting registration of Registrable Securities; (ii) in the case of
an underwritten offering, a "comfort" letter dated as of such date, from the
independent certified public accountants of the Company, in form and substance
as is customarily given by independent certified public accountants to
underwriters in an underwritten public offering and reasonably satisfactory to a
majority in interest of the Holders requesting registration, addressed to the
underwriters; and (iii) at the time of any underwritten sale pursuant to a
registration statement, a "bring-down comfort letter" dated as of the date of
such sale, from the Company's independent certified public accountants covering
such matters of the type customarily covered by comfort letters as the Holders
and the underwriters reasonably request.

     1.6. Furnish Information.  It shall be a condition precedent to the
          -------------------
obligations of the Company to take any action pursuant to Sections 1.2, 1.3 or
1.4 that the selling Holders shall furnish to the Company such information
regarding themselves, the Registrable Securities held by them, and the intended
method of disposition of such securities as shall be reasonably required to
timely effect the registration of their Registrable Securities.

     1.7. Delay of Registration.  No Holder shall have any right to obtain or
          ---------------------
seek an injunction restraining or otherwise delaying any such registration as
the result of any controversy that might arise with respect to the
interpretation or implementation of this Section 1.

     1.8. Indemnification.  In the event any Registrable Securities are
          ---------------
included in a registration statement under Sections 1.2, 1.3 or 1.4:

          (a)  By the Company.  To the extent permitted by law, the Company will
               --------------
indemnify and hold harmless each Holder, the partners, employees, officers and
directors of each Holder, any underwriter (as defined in the Securities Act) for
such Holder and each person, if

                                      -9-
<PAGE>

any, who controls such Holder or underwriter within the meaning of the
Securities Act or the Securities Exchange Act of 1934, as amended, (the
"Exchange Act"), against any losses, claims, damages, or liabilities (joint or
several) (or actions, litigation or investigation of proceeding by any
government agency or body in respect thereof) to which they may become subject
under the Securities Act, the Exchange Act or other federal or state law,
insofar as such losses, claims, damages, or liabilities (or actions, litigation
or investigation or proceeding by any government agency or body in respect
thereof) arise out of or are based upon any of the following statements,
omissions or violations (collectively a "Violation"):

          (1)  any untrue statement or alleged untrue statement of a material
     fact contained in such registration statement, including any preliminary
     prospectus or final prospectus contained therein or any amendments or
     supplements thereto;

          (2)  the omission or alleged omission to state therein a material fact
     required to be stated therein, or necessary to make the statements therein
     not misleading, including any preliminary prospectus or final prospectus
     contained therein or any amendments or supplements thereto; or

          (3)  any violation or alleged violation by the Company of the
     Securities Act, the Exchange Act, any federal or state securities law or
     any rule or regulation promulgated under the Securities Act, the Exchange
     Act or any federal or state securities law in connection with the offering
     covered by such registration statement;

and the Company will reimburse each such Holder, partner, employee, officer or
director, underwriter or controlling person for any legal or other expenses
reasonably incurred by them, as incurred, in connection with investigating or
defending any such loss, claim, damage, liability or action, investigation or
proceeding; provided, however, that the indemnity agreement contained in this
Section 1.8(a) shall not apply to amounts paid in settlement of any such loss,
claim, damage, liability or action, investigation or proceeding if such
settlement is effected without the consent of the Company (which consent shall
not be unreasonably withheld), nor shall the Company be liable in any such case
for any such loss, claim, damage, liability or action, investigation or
proceeding to the extent that it arises out of or is based upon a Violation
which occurs in reliance upon and in conformity with written information
furnished expressly for use in connection with such registration by such Holder,
partner, employee, officer, director, underwriter or controlling person of such
Holder.  The Company shall not have any obligation to the Holders pursuant to
this Section 1.8(a) to the extent any such liability arises out of any Holder's
failure to satisfy the applicable prospectus delivery requirements in connection
with such offer and sale of Registrable Securities.

          (b)  By Selling Holders.  To the extent permitted by law, each selling
               ------------------
Holder, severally and not jointly, will indemnify and hold harmless the Company,
its directors, its officers, each other person, if any, who controls the Company
within the meaning of the Securities Act, any underwriter and any other Holder
selling securities under such registration statement or any of such other
Holder's partners, directors or officers or any person who controls such Holder
within the meaning of the Securities Act or the Exchange Act, against any
losses, claims, damages or liabilities (joint or several) (or actions,
litigation or investigation or proceeding by any government agency or body in
respect thereto) to which the Company or any

                                      -10-
<PAGE>

such director, officer, controlling person, underwriter or other such Holder,
partner or director, officer or controlling person of such other Holder may
become subject under the Securities Act, the Exchange Act or other federal or
state law, insofar as such losses, claims, damages or liabilities (or actions,
litigation or investigation or proceeding by any governmental agency or body in
respect thereto) arise out of or are based upon (1) the failure of any Holder to
deliver a prospectus in accordance with applicable prospectus delivery
requirements, or (2) any Violation to the extent (and only to the extent) that
such Violation occurs in reliance upon and in conformity with written
information furnished by such Holder expressly for use in connection with such
registration; and each such Holder will reimburse any legal or other expenses
reasonably incurred by the Company or any such director, officer, controlling
person, underwriter or other Holder, partner, officer, director or controlling
person of such other Holder in connection with investigating or defending any
such loss, claim, damage, liability or action; provided, however, that the
indemnity agreement contained in this Section 1.8(b) shall not apply to amounts
paid in settlement of any such loss, claim, damage, liability or action if such
settlement is effected without the consent of the Holder, which consent shall
not be unreasonably withheld; and provided, further, that the total amounts
payable in indemnity by a Holder under this Section 1.8(b) in respect of any
Violation shall not exceed the net proceeds (after deducting the underwriting
discount, but before deducting expenses) received by such Holder in the
registered offering out of which such Violation arises.

          (c)  Notice.  Promptly after receipt by an indemnified party under
               ------
this Section 1.8 of notice of the commencement of any action (including any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made against any indemnifying party under this Section 1.8, deliver to
the indemnifying party a written notice of the commencement thereof and the
indemnifying party shall have the right to participate in, and, to the extent
the indemnifying party so desires, jointly with any other indemnifying party
similarly noticed, to assume the defense thereof with counsel mutually
satisfactory to the parties; provided, however, that an indemnified party shall
have the right to retain its own counsel, with the fees and expenses to be paid
by the indemnifying party, if representation of such indemnified party by the
counsel retained by the indemnifying party would be inappropriate due to actual
or potential conflict of interests between such indemnified party and any other
party represented by such counsel in such proceeding. The failure to deliver
written notice to the indemnifying party within a reasonable time of the
commencement of any such action, if prejudicial to its ability to defend such
action, shall relieve such indemnifying party of any liability to the
indemnified party under this Section 1.8, but the omission so to deliver written
notice to the indemnifying party will not relieve it of any liability that it
may have to any indemnified party otherwise than under this Section 1.8.

          (d)  Defect Eliminated in Final Prospectus.  The foregoing indemnity
               -------------------------------------
agreements of the Company and Holders are subject to the condition that, insofar
as they relate to any Violation made in a preliminary prospectus but eliminated
or remedied in the amended prospectus on file with the SEC at the time the
registration statement in question becomes effective or the amended prospectus
filed with the SEC pursuant to SEC Rule 424(b) (the "Final Prospectus"), such
indemnity agreement shall not inure to the benefit of any person if a copy of
the Final Prospectus was furnished to the indemnified party and was not
furnished to the person asserting the loss, liability, claim or damage at or
prior to the time such action is required by the Securities Act.

                                      -11-
<PAGE>

          (e)  Contribution.  In order to provide for just and equitable
               ------------
contribution to joint liability under the Securities Act in any case in which
either (i) any party exercising rights under this Agreement, or any controlling
person of any such party, makes a claim for indemnification pursuant to this
Section 1.8, but it is judicially determined (by the entry of a final judgment
or decree by a court of competent jurisdiction and the expiration of time to
appeal or the denial of the last right of appeal) that such indemnification may
not be enforced in such case notwithstanding the fact that this Section 1.8
provides for indemnification in such case, or (ii) contribution under the
Securities Act may be required on the part of any such party or any such
controlling person in circumstances for which indemnification is provided under
this Section 1.8; then, the indemnifying party shall contribute to the amount
paid or payable by the indemnified party as a result of such losses, claims,
damages, liabilities or expenses (i) in such proportion as is appropriate to
reflect the relative benefits received by the indemnifying party on the one hand
and the indemnified party on the other or (ii) if the allocation provided by
clause (i) above is not permitted by applicable law or provides a lesser sum to
the indemnified party than the amount hereinafter calculated, in such proportion
as is appropriate to reflect not only the relative benefits received by the
indemnifying party on the one hand and the indemnified party on the other but
also the relative fault of the indemnifying party and the indemnified party as
well as any other relevant equitable considerations; provided, however, that, in
any such case, (a) no such Holder will be required to contribute any amount in
excess of the public offering price of all such Registrable Securities offered
and sold by such Holder pursuant to such registration statement; and (b) no
person or entity guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the Securities Act) will be entitled to contribution from any
person or entity who was not guilty of such fraudulent misrepresentation.

          (f)  Survival.  The obligations of the Company and Holders under this
               --------
Section 1.8 shall survive the completion of any offering of Registrable
Securities in a registration statement, and otherwise.

     1.9. Rule 144 Reporting.  With a view to making available the benefits of
          ------------------
certain rules and regulations of the Commission which may at any time permit the
sale of the Registrable Securities to the public without registration or permit
use by the Company of Form S-3 for registration of the resale of the Registrable
Securities, the Company agrees to:

          (a)  Make and keep public information available, as those terms are
understood and defined in Rule 144 under the Securities Act, at all times after
the effective date of the first registration under the Securities Act filed by
the Company for an offering of its securities to the general public;

          (b)  File with the SEC in a timely manner all reports and other
documents required of the Company under the Securities Act and the Exchange Act
(at any time after it has become subject to such reporting requirements);

          (c)  Take all other measures and file all other information, documents
and reports as shall hereafter be required by the SEC as a condition to (i) the
availability of Rule 144 under the Securities Act and (ii) the use of Form S-3;
and

                                      -12-
<PAGE>

           (d)  So long as a Holder owns any Registrable Securities, to furnish
to the Holder forthwith upon request a written statement by the Company as to
its compliance with the reporting requirements of said Rule 144 (at any time
after 90 days after the effective date of the first registration statement filed
by the Company for an offering of its securities to the general public), and of
the Securities Act and the Exchange Act (at any time after it has become subject
to the reporting requirements of the Exchange Act), a copy of the most recent
annual or quarterly report of the Company, and such other reports and documents
of the Company as a Holder may reasonably request in availing itself of any rule
or regulation of the Commission allowing a Holder to sell any such securities
without registration (at any time after the Company has become subject to the
reporting requirements of the Exchange Act).

     1.10. "Market Stand-Off" Agreement.  Each Holder hereby agrees that it
            ---------------------------
shall not, to the extent requested by an underwriter of securities of the
Company, sell or otherwise transfer or dispose of any Registrable Securities or
other shares of stock of the Company then owned by such Holder (other than to
donees or partners of the Holder who agree to be similarly bound) for up to
ninety (90) days following the effective date of a registration statement of the
Company filed under the Securities Act; provided, however, that:

           (a)  such agreement shall be applicable only to the first two such
registration statements of the Company which covers securities to be sold on its
behalf to the public in an underwritten offering after the date hereof;

           (b)  such agreement shall not be applicable to any Registrable
Securities sold pursuant to any registration statement in accordance with the
terms of this Agreement; and

           (c)  all officers and directors of the Company then holding Common
Stock of the Company enter into similar agreements of equal or greater duration.

In order to enforce the foregoing covenant, the Company shall have the right to
place restrictive legends on the certificates representing the shares subject to
this Section and to impose stop transfer instructions with respect to the
Registrable Securities and such other shares of stock of each Holder (and the
shares or securities of every other person subject to the foregoing restriction)
until the end of such period.

     1.11. Subsequent Registration Rights.  From and after the date of this
           ------------------------------
Agreement, the Company shall not, without the prior written consent of the
Holders of a majority of the Registrable Securities then outstanding (which
consent shall not be unreasonably withheld), enter into any agreement with any
holder or prospective holder of any securities of the Company which would grant
such holder the right to request the Company to register any equity securities
of the Company, or any securities convertible into or exercisable for such
securities.

2.   ASSIGNMENT AND AMENDMENT.
     ------------------------

     2.1.  Assignment of Registration Rights.  Notwithstanding anything herein
           ---------------------------------
to the contrary; the Holder of registration rights under this Agreement may
assign any of the foregoing rights, to (1) other individuals to induce them to
join the senior management team of the Company, (2) to immediate family members
and children of immediate family members, or entities of which such individuals
are beneficiaries, in connection with estate planning, and (3) to

                                      -13-
<PAGE>

any other party who acquires all and not less than all of the Registrable
Securities owned by an Investor at the time of such assignment; provided, that
any such assignee shall receive such assigned rights subject to all the terms
and conditions of this Agreement, including without limitation the provisions of
this Section 2 and shall agree in writing to be bound by the terms and
conditions of this Agreement.

     2.2. Amendment of Rights. Any provision of this Agreement may be amended
          -------------------
and the observance thereof may be waived (either generally or in a particular
instance and either retroactively or prospectively), only with the written
consent of the Company and Holders of at least 66-2/3% of Registrable
Securities. Any amendment or waiver effected in accordance with this Section 2.2
shall be binding upon the Investors and each successor or assignee of the
Investors and the Company.

3.   GENERAL PROVISIONS.
     ------------------

     3.1. Notices.  Any notice, request, demand and other communication
          -------
hereunder shall be in writing and shall be deemed to have been duly given when
delivered in person, sent via a nationally recognized overnight courier or sent
via facsimile to the recipient, addressed to the party for whom intended at the
address set forth below, or such other address as may be designated by any party
hereto by notice to all the other parties in accordance with this Section, or
when actually received if sent by any other means,

               if to the Investors:

               Louis M. Brown, Jr.
               4801 Maury Lane
               Alexandria, Virginia  22304

               Arthur C. Kellar
               _______________________
               _______________________

               Desarrollo Integrado, S.A. de C.V.
               __________________________
               __________________________
               Attn:  Mauricio Zambrano

               if to the Company:

               Precision Auto Care, Inc.
               748 Miller Drive, S.E.
               Leesburg, Virginia 20175
               Attn:  General Counsel

or at such other address as the Investors or the Company may designate by giving
ten (10) days advance written notice to the other parties.

                                      -14-
<PAGE>

     3.2.  Entire Agreement.  This Agreement, together with all the Exhibits
           ----------------
hereto, constitutes and contains the entire agreement and understanding of the
parties with respect to the subject matter hereof and supersedes any and all
prior negotiations, correspondence, agreements, understandings, duties or
obligations between the parties respecting the subject matter hereof.

     3.3.  Governing Law.  This Agreement shall be governed by and construed
           -------------
exclusively in accordance with the internal laws of the Commonwealth of Virginia
as applied to agreements among Virginia residents entered into and to be
performed entirely within Virginia, excluding that body of law relating to
conflict of laws and choice of law.

     3.4.  Severability.  If one or more provisions of this Agreement are held
           ------------
to be unenforceable under applicable law, then such provision(s) shall be
excluded from this Agreement and the balance of this Agreement shall be
interpreted as if such provision(s) were so excluded and shall be enforceable in
accordance with its terms.

     3.5.  Third Parties.  Nothing in this Agreement, express or implied, is
           -------------
intended to confer upon any person, other than the parties hereto and their
successors and permitted assigns, any rights or remedies under or by reason of
this Agreement.

     3.6.  Successors And Assigns.  Subject to the provisions of Section 2.1,
           ----------------------
the provisions of this Agreement shall inure to the benefit of, and shall be
binding upon, the successors and permitted assigns of the parties hereto.

     3.7.  Captions.  The captions to sections of this Agreement have been
           --------
inserted for identification and reference purposes only and shall not be used to
construe or interpret this Agreement.

     3.8.  Counterparts.  This Agreement may be executed in counterparts, each
           ------------
of which shall be deemed an original, but all of which together shall constitute
one and the same instrument.

     3.9.  Costs And Attorneys' Fees.  In the event that any action, suit or
           -------------------------
other proceeding is instituted concerning or arising out of this Agreement or
any transaction contemplated hereunder, the prevailing party shall recover all
of such party's costs and attorneys' fees incurred in each such action, suit or
other proceeding, including any and all appeals or petitions therefrom.

     3.10. Adjustments for Stock Splits, Etc.  Wherever in this Agreement there
           ---------------------------------
is a reference to a specific number of shares of Common Stock or Preferred Stock
of the Company of any class or series, then, upon the occurrence of any
subdivision, combination or stock dividend of such class or series of stock, the
specific number of shares so referenced in this Agreement shall automatically be
proportionally adjusted to reflect the effect on the outstanding shares of such
class or series of stock by such subdivision, combination or stock dividend.

     3.11. Specific Performance.  The Company and the Investors acknowledge and
           --------------------
agree that any violation of the terms of this Agreement would cause irreparable
harm to the non-breaching parties and that in the event of any such violation
the non-breaching parties and that in the event of any such violation the non-
breaching parties shall be entitled to receive from any court of any
jurisdiction (in any jurisdiction) the right of specific performance.

                                      -15-
<PAGE>

     3.12.  Aggregation of Stock.  All shares held or acquired by affiliated
            --------------------
entities or persons shall be aggregated together for the purpose of determining
the availability of any rights under this Agreement.

                           [SIGNATURE PAGE FOLLOWS]

                                      -16-
<PAGE>

     3.13.  IN WITNESS WHEREOF, the parties hereto have executed this Agreement
as of the date and year first above written.

THE COMPANY:                            PRECISION AUTO CARE, INC.
-----------                             a Virginia corporation

                                        By: ________________________________
                                            Name:
                                            Title:

THE INVESTORS:
-------------

                                        /s/ Louis M. Brown, Jr.
                                        ------------------------------------
                                        Louis M. Brown, Jr.

                                        /s/ Arthur C. Kellar
                                        ------------------------------------
                                        Arthur C. Kellar

                                        DESARROLLO INTEGRADO, S.A. de C.V.

                                        By: /s/ Mauricio Zambrano
                                            --------------------------------
                                        Name:  Mauricio Zambrano
                                        Title:  Managing Director

                                      -17-

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