Document:

<PAGE>   1
EXHIBIT 10.60

                             AMENDMENT NO. 1 TO THE
                           ABM INDUSTRIES INCORPORATED
                          EMPLOYEE STOCK PURCHASE PLAN
                             (May 2000 Restatement)

                  ABM INDUSTRIES INCORPORATED, having established the ABM
Industries Incorporated 1985 Employee Stock Purchase Plan and having amended and
restated the Plan as the Employee Stock Purchase Plan as of May 1, 2000 (the
"Plan"), hereby amends the Plan, effective as of March 20, 2001, by amending the
second sentence of the Plan to read as follows:

                  An aggregate of 8,600,000 shares of such stock may be issued
under the Plan.

                  IN WITNESS WHEREOF, ABM Industries Incorporated, by its duly
authorized officer, has executed this Amendment No. 1 on the date indicated
below.

                                 ABM INDUSTRIES INCORPORATED

Dated:   March 21 , 2001         By      /s/ Lorraine P. O'Hara
                                    ----------------------------------
                                 Title:  Assistant Corporate Secretary<PAGE>   1

                                                                    Exhibit 10.1

                                  AMENDMENTS TO
                               FINANCIAL ADVISORY
                       AND MANAGEMENT CONSULTING AGREEMENT

         Reference is made to that certain Financial Advisory and Management
Consulting Agreement (the "Consulting Agreement") entered into as of January 5,
2001 by and between ROBERT B. DIXON ("Consultant") and NATIONAL AUTO CREDIT,
INC. ("NAC"), a Delaware corporation.

         The paragraphs set forth herein shall supercede and replace the
corresponding paragraphs in the Consulting Agreement. Where no corresponding
paragraph exists in the Consulting Agreement, the paragraph(s) set forth herein
shall be added thereto. Except as expressly set forth herein, the remainder of
the Consulting Agreement shall remain in full force and effect as originally
executed.

         All capitalized terms used and not otherwise defined herein shall have
the meanings ascribed to them in the Consulting Agreement.

         NOW THEREFORE, in consideration of the premises and mutual covenants
hereinafter set forth and other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, Consultant and NAC hereby agree to
the following amendments effective as of April 1, 2001 (the "Amendment"):

3.       DUTIES AND RESPONSIBILITIES; PLACE OF PERFORMANCE

         3.1 DUTIES AND RESPONSIBILITIES. During the Contract Period, Consultant
shall devote his full business time to NAC. Consultant shall have the titles of
Chief Financial Officer ("CFO"), Chief Accounting Officer ("CAO"), and Treasurer
and shall be responsible for the affairs of NAC and its subsidiaries in pursuit
of NAC's Business. Consultant shall perform such duties as customarily required
of a CFO, those duties customarily required of a CAO, and those duties
customarily required of a Treasurer in the areas of, but not limited to,
finance, securities regulation and compliance (including, but not limited to,
preparation and filing of periodic securities reports required by the U.S.
Securities and Exchange Commission, state "blue sky" regulations, or the rules
of national securities exchanges), budgets and operations, and treasury
functions, together with such other matters as he may be reasonably assigned
from time to time by the CEO or NAC's Board of Directors (the "Board").

4.       COMPENSATION AND RELATED MATTERS

         4.1 FEE. Commencing April 1, 2001, NAC shall pay Consultant a fee of
$15,000 per calendar month (the "Consulting Fee"), pro-rated for any portion of
a month at the commencement or termination of the Contract Period, subject to
increase at the discretion of the Board, payable bi-monthly (on the 15th and
last day of the month, or the next business day, if such day falls on a
Saturday, Sunday, or legal holiday) in arrears.

         4.3 BONUS IN LIEU OF VACATION PAY. Retroactive to January 5, 2001, for
each three-month period of service by Consultant, and in lieu of vacation, NAC
shall pay Consultant a bonus equal to Consultant's weekly pro-rated fee.

<PAGE>   2

         4.4 REIMBURSEMENT TOWARD HEALTH INSURANCE. Inasmuch as NAC shall not
provide health insurance benefits to Consultant under NAC's policy or policies,
NAC shall reimburse Consultant the sum of $500 per month towards the cost of any
health insurance coverage Consultant may choose to obtain on his own.

         4.5 DIRECTORS AND OFFICERS LIABILITY INSURANCE. Consultant shall be
entitled to coverage under the policy or policies of insurance maintained by NAC
for directors and officers liability to the extent such policy or policies
permit.

         4.6 INDEMNIFICATION BY NAC. Consultant shall be entitled to
indemnification by NAC for liability which may arise out of or which may be
related to the performance of his duties as CFO and/or CAO, to the fullest
extent provided by Delaware law and the charter and bylaws of NAC.

         IN WITNESS WHEREOF, the parties hereto have executed this Amendment
effective as of the 1st day of April, 2001.

                                 NATIONAL AUTO CREDIT, INC.

                                 By:
                                     -------------------------------------
                                           Name:  James McNamara
                                           Title: Chief Executive Officer

                                 -----------------------------------------
                                          Robert B. Dixon

                                      -2-<PAGE>   1
                                                                    Exhibit 10.2

                                [NAC LETTERHEAD]

                                         April 25, 2001
Mr. Sean P. Maroney
12200 Country Oak Tr.
Munson, Ohio  44024

                           RE:  SEPARATION FROM NAC
                                -------------------

Dear Mr. Maroney:

         This letter confirms our agreement with respect to your separation from
National Auto Credit, Inc. and its subsidiaries and affiliates (collectively,
except where the context requires otherwise, "NAC" or the "Company") and the
terms and conditions thereof.

1.   At the close of business on the "Separation Date" (as defined below), you
     will have no further job responsibilities with the Company. The Separation
     Date shall be your last day of employment (i.e., the last day on which you
     are expected to report to work and carry out assigned tasks). Effective at
     the close of business on the Separation Date, you resign as an employee,
     officer and director of NAC and each of NAC's subsidiaries and affiliates.
     You agree that NAC has no obligation, contractual or otherwise, to rehire,
     reemploy or recall you in the future.

2.   The Separation Date shall be the earlier of (A) June 30, 2001 or (B) the
     date specified by you on fourteen (14) days' prior written notice, which
     date shall not be earlier than May 2, 2001. The parties, by mutual
     agreement, may extend the Separation Date beyond June 30, 2001, in which
     event the term "Separation Date" shall mean the date agreed as the end of
     such extension period.

3.   You acknowledge that this Agreement shall supersede any and all contracts
     of employment or other agreements or arrangements with respect to
     employment you have or had with the Company, and such other contracts,
     agreements and arrangements shall hereafter be of no further force or
     effect.

<PAGE>   2

4.            A. Through and including the Separation Date, you shall continue
     to receive not less than your regular salary at the rate now in effect
     (i.e., $105,000 per annum), subject to normal payroll deductions (your "Net
     Salary"), along with all benefits to which you are currently entitled and
     your business expense reimbursement in accordance with the Company's
     current policies.

              B. In consideration for your performance of the covenants set
     forth in this Agreement, your execution of the general release (in the form
     annexed hereto as EXHIBIT A, the "Original Release") and your execution on
     the Separation Date of an additional general release (also in the form
     annexed hereto as EXHIBIT A, except dated the Separation Date), which
     additional general release, when effective, shall supplement but not
     supersede the Original Release (the "Bringdown Release"; as used herein,
     the term "General Release" shall mean the Original Release until the
     Bringdown Release has become effective and thereafter shall mean both the
     Original Release and the Bringdown Release), you shall be entitled to the
     following:

              (i)   Continuation of the payment of your Net Salary for six (6)
                    months following the Separation Date (the "Payment Period"),
                    such amounts to be paid on such dates as salary payments
                    would otherwise have been made if your employment with the
                    Company had not terminated.

              (ii)  The Chief Executive Officer of NAC has determined that NAC
                    has substantially succeeded in winding up its operations in
                    the Cleveland, Ohio area on or before March 1, 2001 and,
                    therefore, you have earned a cash bonus, payable 5 business
                    days from the date hereof, in the amount of $27,000, less
                    any applicable withholding.

              (iii) You shall have the option to purchase the 1998 Pontiac Grand
                    Prix automobile you currently have access to as part of your
                    employment with the Company for $500.00; provided that you
                    furnish written notice to the Company of your exercise of
                    such option on or before the Separation Date and make
                    payment for such automobile within fifteen (15) days
                    thereafter.

              (iv)  The Company agrees that you shall continue to be entitled to
                    the same indemnification to which you were entitled in your
                    role as an employee, officer and/or director of the Company,
                    to the extent permitted by Delaware law, the Company's
                    Certificate of Incorporation and the Company's By-laws and
                    shall include coverage pursuant to NAC's then-current
                    directors and officers insurance policy (if any).

              C. The Company shall continue your enrollment in the following
     insurance plans (to the extent you are covered thereby on the Separation
     Date) through the end of the Payment Period, provided that such plans
     permit continued enrollment: Dental; Medical; Vision Care;

                                       2
<PAGE>   3

     Life, Accidental Death and Dismemberment; Supplemental Life Insurance for
     Officers; Long-term Disability; and Short-term Disability. If any plan does
     not permit continued enrollment, then, to the extent permitted by COBRA,
     you shall elect to continue your coverage for such plan(s) and the Company
     shall reimburse you for your out-of-pocket costs in connection with such
     continued coverage through the end of the Payment Period. You shall also be
     entitled to continue your participation in the Company's 401(k) Savings
     Plan through the end of the Payment Period, although the obligation of the
     Company to make contributions thereto on your behalf shall cease on the
     Separation Date. The Company will take steps to cause the employee to be
     fully vested in the Company's 401(k) Savings Plan as of the Separation
     Date; provided, however, that the 401(k) plan permits such vesting and
     provided, further, that neither the taking of such steps nor such vesting
     would require any out-of-pocket costs to be borne by the Company. All other
     programs and benefit coverages available to you as an employee or officer
     of NAC shall cease in accordance with the terms of the program or benefit
     coverage as of the Separation Date; provided, however, that nothing herein
     or in the General Release shall limit or terminate your rights, if any, (a)
     to indemnification as a former employee or officer of NAC pursuant to
     applicable law and NAC's by-law and charter provisions pertaining thereto,
     (b) for coverage pursuant to NAC's then-current directors and officers
     insurance policy, (c) to health care coverage and any other benefits
     required to be provided under COBRA, (d) with respect to any rights in any
     pension or other retirement program to the extent that such rights have
     vested on or prior to the Separation Date; or (e) with respect to your
     rights in the Company's 401(k) Savings Plan, to the extent that such rights
     have vested on or prior to the Separation Date, or with respect to such
     additional rights as may be created as a result of your continued
     participation in such plan through the end of the Payment Period as
     provided above.

              D. Subject to the provisions of Section 9 hereof, you agree to
     provide reasonable cooperation with NAC, its counsel and its insurance
     carriers in the defense or prosecution of any claims brought by or against
     NAC.

5.   You acknowledge that you have no entitlement to receive the payments set
     forth in subsection 4B hereof, other than in consideration for your
     execution of the Original Release, the Bringdown Release and your
     performance of the provisions of this Agreement. You confirm that no other
     monies or other compensation are due to you other than as are provided for
     in section 4 of this Agreement.

6.   In the event that any prospective employer or any other individual contacts
     the Company for a reference regarding you, the Company shall confirm that
     you were employed by the Company in the position(s) of "Director of
     Financial Reporting" and the length of your employment. In the event that
     any prospective employer or any other individual requests information from
     the Company regarding the circumstances surrounding your leaving the employ
     of the Company, the Company will furnish a copy of the reference letter in
     the form annexed hereto as Exhibit C or shall orally communicate the
     information contained therein.

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<PAGE>   4

     The Company shall not, and shall instruct its officers, directors,
     management and employees not to, make or publish any comment that is
     defamatory, disparaging or otherwise critical of you or that would
     otherwise tend to have an adverse effect upon your professional reputation.

7.   You acknowledge that you have acquired Confidential Information (as defined
     below) while working for NAC and Business Records (as defined below) of
     NAC. It is understood by you and the Company that the General Release,
     Company Release and non-disclosure provisions of this Agreement are
     essential consideration for this Agreement and an award of damages may be
     made for a violation thereof. Any such award shall not affect the
     enforceability of the General Release or Company Release.

          A.    As used herein, "CONFIDENTIAL INFORMATION" means any
                proprietary, confidential and/or other non-public information
                of, relating to or regarding the business or interests of the
                including, without limitation, information pertaining to the
                Company's business, business plans, completed or pending
                transactions, board meetings, personnel or development plans and
                activities, trade secrets, databases, company policies,
                procedures and techniques, correspondence, agreements,
                confidentiality agreements, offering packages, business
                descriptions and profiles, financial information, product
                literature and technical projects of, regarding or relating to
                the Company, and any research datum or result, report, analysis,
                study, invention, customer and/or prospect list, process or
                other work product developed by or for the Company, including,
                without limitation, that developed by you, whether on the
                premises of the Company or elsewhere. Notwithstanding the
                foregoing, the provisions of this Agreement shall not apply to
                any Confidential Information to the extent, but only to the
                extent, that the same is, or has become, publicly known under
                circumstances involving no breach of this Agreement or has been
                disclosed pursuant to order or requirement of a court,
                administrative agency or other governmental body of competent
                authority, PROVIDED that the Company has been given appropriate
                and reasonable notice of such proceeding and a reasonable
                opportunity to contest such disclosure.

          B.    All business, financial, product and technical records,
                information and literature relating to the business of the
                Company (all such business, financial, product and technical
                records, information and literature being hereinafter referred
                to collectively as "BUSINESS RECORDS"), including, without
                limitation, Confidential Information, agreements,
                confidentiality agreements, papers, databases, contact records,
                documents and correspondence and studies containing information
                relating to the Company, and any copies of any of the foregoing,
                in all cases irrespective of the manner in which such
                information was obtained or is kept or stored, made or kept by
                you or under your possession, custody or control or in the
                possession, custody or control of any agent and representative
                of yours shall be and remain the sole and exclusive property of
                the Company and shall be surrendered to the Company on or before
                the Separation Date.

                                       4
<PAGE>   5

          C.    You agree not to use or disclose to any person or entity (other
                than your attorney, who shall keep such information
                confidential) any such Confidential Information, whether for
                your benefit or for the benefit of another, and you will hold
                and treat such information as confidential unless you have
                specific written authorization from NAC to use or disclose it.

          D.    By the Separation Date, you agree to return to NAC any and all
                Business Records and other property of NAC in your possession,
                or otherwise under your control, including, without limitation,
                all documents, data files, computer disks, other materials and
                all copies thereof. You shall not, and shall cause your agents,
                representatives and affiliates not to, retain, publish or
                disclose, or otherwise use, without the prior written consent of
                the CEO of the Company, any Business Records of the Company.
                Further, except in the ordinary course of your current
                activities, you shall not, and shall not allow or permit any
                representative or agent of yours to, delete any scheduling or
                other information with respect to any pending activities, or
                otherwise delete, move, remove or otherwise distort or alter any
                Business Records (regardless of the form or medium in which the
                same may be maintained).

          E.    The foregoing provisions regarding Business Records shall not
                apply to any Business Records that have been filed with the SEC
                or are otherwise part of the public domain, to copies of the
                Company's indemnification provisions or to the Company's
                then-current directors and officers insurance policy. The
                Company agrees that it shall provide you with copies of such
                insurance policy during each of the next three (3) renewal
                periods.

          F.    Except as otherwise provided in this Agreement, you agree that
                you will not, directly or indirectly, for yourself or on behalf
                of any other person, firm, association or agency, make or
                publish any comment that is defamatory, disparaging or otherwise
                critical of the Company, its products, transactions, businesses,
                officers, directors, attorneys, agents, management, employees or
                operations.

          G.    It shall not be a violation of this Agreement if you are
                required to disclose any Confidential Information or Business
                Records during testimony you give under oath PROVIDED that the
                Company has been given appropriate and reasonable notice of such
                proceeding and a reasonable opportunity to contest such
                disclosure.

8.   You acknowledge that a breach by you of any portion of section 7 of this
     Agreement or the General Release could cause the Company irreparable injury
     and damage. Because it would not be possible to determine the true and
     complete extent of the injury or damage to the Company in the event of such
     a breach, you agree that any breach of the terms of this Agreement will
     subject you to liability to NAC for immediate injunctive relief and all
     damages awarded by the Court; it being agreed that each party shall bear
     its own attorney's

                                       5
<PAGE>   6

     fees and costs in bringing or defending the action. You further agree that
     in the event of a material breach of the terms of this Agreement as
     determined by a court of competent jurisdiction,, in whole or in part, any
     amounts paid to you pursuant to section 4 shall become immediately due and
     payable to NAC, no further payments under section 4, if any, shall be due
     to you and NAC will have and may pursue its legal remedies for repayment,
     including, but not limited to, the remedy of recession for breach of
     contract, fraud and misrepresentation.

9.   Subsequent to the Separation Date:

              A. If the Company requests you to participate in or expend time or
     efforts in connection with any Company-related matter, the Company shall
     compensate you at the rate of $50.00 per hour for the actual number of
     hours you spend on such matters. The Company agrees that you may refuse a
     request to participate in or expend time or efforts in connection with any
     Company-related matter, provided, however, that you agree that:

                 (i)    during the 30 days immediately following the Separation
                        Date, you shall provide to the Company up to two (2)
                        hours of telephonic consultation per week; and

                 (ii)   during the 31st through 60th days immediately following
                        the Separation Date, you shall provide to the Company up
                        to one and one-half (1.5) hours of telephonic
                        consultation per week.

              B. If a third party requests, by subpoena or otherwise, you to
     participate in or expend time or efforts in connection with any
     Company-related matter, you shall promptly contact the Company's Chief
     Executive Officer and cooperate fully with the Company and its counsel or
     other advisors, in which event you shall be entitled to the same hourly
     rate as set forth in the previous subsection.

10.

              A. You affirm that you have not caused or permitted to be filed on
                 your behalf, nor will you cause or permit to be filed or
                 asserted on your behalf, any charge, complaint, grievance, or
                 proceeding before any federal, state or local administrative
                 agency or court, or any other forum, against the Company, its
                 officers, directors and employees. In the event that any
                 charge, complaint, grievance, arbitration, action or other
                 proceeding was or is filed by you, or on your behalf (other
                 than to receive the consideration promised to you in section 4
                 of this Agreement and other than a claim under the Age
                 Discrimination in Employment Act of 1967, as amended), you
                 agree that you will not obtain or accept any recovery or relief
                 therefrom or provide any testimony unless required to do so by
                 subpoena. In the event that such claim falls under ADEA, NAC
                 will have a set off against any judgment in your favor equal to
                 the full amount of the consideration promised to you in section
                 4 of this Agreement. You further agree to perform and authorize
                 the Company to perform all acts necessary to obtain the
                 immediate withdrawal and/or dismissal with prejudice, at your

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<PAGE>   7

                 own cost and expense, of each such claim and to pay the legal
                 fees and costs incurred by the Company for actions taken to
                 defend against and to seek to obtain the dismissal of any
                 action or claim that is filed or asserted. You further
                 acknowledge that the filing of any action, other than one to
                 enforce any provision of this Agreement, would be a breach of
                 this Agreement and would make you liable for the repayment to
                 the Company of any and all of the payments set forth in section
                 4 hereof that were paid to you.

              B. The Company affirms that it has not caused, nor permitted to be
                 filed on its behalf, any charge, complaint, grievance, or
                 proceeding before any federal, state or local administrative
                 agency or court, or any other forum, against you.

11.  This Agreement shall be binding on you and the Company, our respective
     heirs, executors, administrators, successors and assigns, and shall be
     construed under the laws of the State of Ohio to preserve its
     enforceability and to effect the general release, settlement and waiver of
     all claims of each and every kind except those specifically preserved
     hereunder. A court may modify or delete any otherwise unenforceable clause.

12.  You and the Company agree to be legally bound by this Agreement, and hereby
     agree that this Agreement can be modified only by a written memorandum
     signed by both you and the Company, which recites the specific intent to
     modify this Agreement. This Agreement is subject to approval by the
     Company's Board of Directors.

13.  The terms of this Agreement and the General Release attached hereto are the
     product of mutual negotiation and compromise between you and the Company.
     The meaning, effect and terms of this Agreement and the General Release
     have been fully explained to you, and you understand that this Agreement
     and the General Release settles, bars, and waives any and all claims that
     you have or could possibly have against the Company, unless prohibited from
     releasing such claim by law or unless expressly reserved hereunder. You
     acknowledge that you have been given a period of at least twenty-one (21)
     days to consider this Agreement and the General Release and their content
     and its ramifications and that to the extent that you execute this
     Agreement and the General Release prior to the end of such twenty-one (21)
     day period you knowingly and voluntarily waive such review period.

     You understand that you may revoke your execution of this Agreement and the
     General Release within the seven (7) business day period following the day
     you execute this Agreement and the General Release. You understand that
     this Agreement and the General Release shall not become effective or
     enforceable until the revocation period has expired and no further payments
     need be made during that time. Any revocation within this period must be
     submitted, in writing, to the Company and state, "I hereby revoke my
     acceptance of our Agreement and the General Release". Said revocation must
     be personally delivered to the Company, in care of James J. McNamara, Chief
     Executive Officer, or his designee, or mailed to the Company, in care of
     James J. McNamara, Chief Executive Officer, and postmarked within seven (7)
     business days of the execution of this Agreement and the General Release.
     If

                                       7
<PAGE>   8

     written notice of revocation is not received by NAC within the seven (7)
     day period, this Agreement and the General Release shall be fully effective
     and enforceable and the Company shall thereupon deliver to you a fully
     executed Company Release in the form annexed hereto as Exhibit B.

14.  You acknowledge that you have been advised by the Company to consult with
     an attorney prior to executing this Agreement and the General Release. You
     understand that you will have ample time to consult further with your
     counsel during the revocation period described in section 13 of this
     Agreement. The Company agrees that you shall be reimbursed for your actual
     costs in connection with obtaining such legal advice, in an amount not to
     exceed $2,500.

15.  You acknowledge that you have carefully read and fully understand the terms
     of this Agreement and the General Release and that your acceptance of this
     Agreement in accordance with the terms hereof releases the Company from any
     and all claims arising out of your employment relationship with the
     Company, or the termination thereof. You acknowledge that you have signed
     this Agreement and the General Release of your own free will, in exchange
     for the benefits to be provided to you as set forth in section 4 hereof.

16.  No representative of the Company has made any representations or promises
     to you concerning the terms and effects of this Agreement and the General
     Release other than those contained in this Agreement and the General
     Release, and in executing this Agreement and the General Release, you do
     not rely, and have not relied, upon any representations or statements not
     set forth herein with regard to the subject matter, basis or effect of this
     Agreement and the General Release or otherwise.

17.  This Agreement and the General Release constitute your and the Company's
     entire agreement with respect to its subject matter and may not be modified
     or amended except as set forth in section 12 hereof. This Agreement and the
     General Release supersede all prior agreements and understandings
     concerning its subject matter, including but not limited to, your
     employment and other relationships with the Company. This Agreement and the
     General Release shall be interpreted, construed, and enforced in accordance
     with the laws of the State of Ohio. You and the Company consent to personal
     jurisdiction and venue in the federal and state courts situated in
     Cleveland, Ohio, with respect to any dispute arising between you and the
     Company arising and you and the Company waive trial by jury for any such
     action.

                            [SIGNATURE PAGE FOLLOWS]

                                       8
<PAGE>   9

                  Your signature on the copy of this Agreement in the space
provided below, as well as your execution of the General Release in the form
annexed hereto as Exhibit A, shall constitute your acceptance of the terms and
conditions hereof.

                                    Very truly yours,

                                    NATIONAL AUTO CREDIT, INC.

                                    By  /s/ James J. Mcnamara
                                      -----------------------
                                        James J. McNamara, CEO

AGREED AND ACCEPTED:
this 25th day of  April, 2001.

  /s/ Sean P. Maroney
--------------------------
Sean P. Maroney

                                       9
<PAGE>   10

                                    EXHIBIT A

                                 GENERAL RELEASE

              TO ALL WHOM THESE PRESENTS SHALL COME OR MAY CONCERN,

KNOW THAT

         Sean P. Maroney, as RELEASOR, in consideration of the sum of One
($1.00) Dollar and other good and valuable consideration set forth in the
Agreement between RELEASOR and National Auto Credit, Inc. ("NAC") dated April
25, 2001, releases and discharges NAC and NAC's affiliates, officers, directors,
employees, agents, subsidiaries, successors, employees, attorneys and assigns
(collectively, "RELEASEE") from all actions, causes of action, contracts,
agreements, claims for bonuses, payments, wages, benefits or other forms of
compensation, charges, complaints and demands whatsoever, in law or equity,
which against RELEASEE RELEASOR, his dependents, heirs, creditors, executors,
administrators, successors, assigns or counsel may have, whether now known or
unknown, from the beginning of the world to the day of the date of this RELEASE,
including, but not limited to, all claims relating to RELEASOR'S
employment/consulting services or relationship with NAC and his service as an
officer and director of NAC and the cessation thereof. Without limitation to the
foregoing, RELEASOR hereby waives, releases and discharges any actions sounding
in or related to tort (including defamation, infliction of emotional distress or
other tort), contract (whether oral or written, expressed or implied from any
source), tort, promissory estoppel, or arising under the Worker Adjustment and
Retraining Notification Act of 1988, 23 U.S.C. Section 2101 et seq., or
discrimination of any kind, including but not limited to all claims under the
Age Discrimination in Employment Act, 29 U.S.C. Section 621 et seq.; the Civil
Rights Act of 1871, 42 U.S.C. Section 1981; the Civil Rights Act of 1964, 42
U.S.C. Section 2000e, et seq.; Ohio Revised Code Section 4112; Ohio Revised Code
Section 4101.17; the Americans With Disabilities Act, 42 U.S.C. Section 12101,
et seq.; the Rehabilitation Act, 29 U.S.C. Section 701 et seq.; the Older
Workers Benefit Protection Act, 29 U.S.C. Section 621 et seq; the National
Labor Relations Act, the Fair Labor Standards Act under; the Employee Retirement
Income Security Act of 1974; the Vocational Rehabilitation Act; and any other
federal, state or local discrimination, bias, human or civil rights, wage-hour,
pension or labor laws, rules and/or regulations or public policies or any other
claim, whether known or unknown, of any kind whatsoever.

Nothing in this General Release shall release or discharge the provisions of the
Letter Agreement between Sean P. Maroney and NAC dated April 25, 2001.

This General Release shall be interpreted, construed, and enforced in accordance
with the laws of the State of Ohio.

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The words "RELEASOR" and "RELEASEE" include all releasors and all releasees
under this RELEASE.

 This RELEASE may not be modified or changed except in a written instrument
 executed by NAC and by Sean P. Maroney.

         IN WITNESS WHEREOF, the RELEASOR has hereunto set RELEASOR'S

hand and seal on the  25th  day of April, 2001.

                   /S/ Sean P. Maroney
         -------------------------------------
                   Sean P. Maroney

STATE OF OHIO         )
COUNTY OF CUYAHOGA    ) SS.:

         On the 25th day of April, 2001, before me personally came Sean P.
Maroney, to me known, and known to me to be the individual described in, and who
executed the foregoing RELEASE, and duly acknowledged to me that he executed the
same.

                                          /s/ Michael Morris
                                       -------------------------
                                              Notary Public

                                       2
<PAGE>   12

                                    EXHIBIT B

                                 COMPANY RELEASE

              TO ALL WHOM THESE PRESENTS SHALL COME OR MAY CONCERN,

KNOW THAT

         National Auto Credit, Inc., together with its officers, directors,
affiliates, successors and assigns, ("NAC") as RELEASOR, in consideration of the
sum of One ($1.00) Dollar and other good and valuable consideration set forth in
the Agreement between RELEASOR and Sean P. Maroney dated April 25, 2001,
releases and discharges Sean P. Maroney ("RELEASEE") from all disputes, actions,
causes of action, contracts, agreements, claims, complaints and demands, in law
or equity, arising solely from or relating solely to (a) expense reimbursement
forms submitted to RELEASOR by RELEASEE, (b) malfeasance, (c) misfeasance or (d)
nonfeasance which against RELEASEE RELEASOR, may have, whether now known or
unknown, from the beginning of RELEASEE's employment by NAC to the day of the
date of this RELEASE.

Nothing in this RELEASE shall release or discharge the provisions of the Letter
Agreement between Sean P. Maroney and NAC dated April 25, 2001.

This RELEASE shall be interpreted, construed, and enforced in accordance with
the laws of the State of Ohio.

                                       1
<PAGE>   13

The words "RELEASOR" and "RELEASEE" include all releasors and all releasees
under this RELEASE.

This RELEASE may not be modified or changed except in a written instrument
executed by NAC and by Sean P. Maroney.

IN WITNESS WHEREOF, the RELEASOR has hereunto set RELEASOR'S

hand and seal on the _______day of April, 2001.

National Auto Credit, Inc.

By:                                 _______________

STATE OF         )
COUNTY OF        ) ss.:

         On this      day of April    , 2001, before me, the undersigned,
personally appeared ________________________, personally known to me, who by me
duly sworn, did depose and say that deponent resides
at___________________________________________________, that deponent is the of
National Auto Credit, Inc., the corporation described in, and which executed the
foregoing instrument, that it was executed by order of the Board of Directors of
the corporation, and that deponent signed deponent's name by like order.

                                               ----------------------------
                                                       NOTARY PUBLIC

                                       2
<PAGE>   14

                                    EXHIBIT C

                                REFERENCE LETTER

                           NATIONAL AUTO CREDIT, INC.

To Whom It May Concern:

         This is to inform you that Sean Maroney worked at National Auto Credit,
Inc. from May, 1995 to June, 2001, most recently as Director, Financial
Reporting (the Company's principal accounting officer). Mr. Maroney had a wide
variety of duties and responsibilities commensurate with such a position, all of
which he performed in an exemplary fashion. Sean was a loyal and hard-working
employee who contributed to the success of NAC. His separation from the Company
was due solely to the fact that NAC terminated operations in Cleveland, Ohio. I
strongly recommend Sean Maroney for a position with your Company.

                                                 Chairman of the Board

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