EXHIBIT 99.6


     TRIPARTY  CONTINGENT  ASSIGNMENT  AGREEMENT dated as of April 25, 2002 (the
"Agreement"),  among Capital Auto Receivables  Asset Trust 2002-2 (the "Trust"),
General  Motors  Acceptance  Corporation  ("GMAC")  and  Merrill  Lynch  Capital
Services, Inc. (the "Primary Swap Counterparty").

     WHEREAS,  the Trust and the Primary Swap Counterparty have entered into the
Primary Swap Agreement (hereinafter defined);

     WHEREAS,  GMAC and the Primary  Swap  Counterparty  have  entered  into the
Back-to-Back Swap Agreement (hereinafter defined);

     NOW, THEREFORE, the parties hereto hereby agree as follows:

                                   ARTICLE I

                                   Definitions

     Section 1.01 The following terms shall have the meanings set forth below:

     "Additional  Contingent  Counterparty"  means a Person  with the  Requisite
Rating  entering  into an  agreement  substantially  similar  to this  Agreement
pursuant to Section 2.02.

     "Assignment  Date" means the date upon which GMAC receives  notice from the
Trust of the occurrence of a Designated Event, or if such date is not a Business
Day, the next succeeding Business Day.

     "Back-to-Back  Swap  Agreement"  means the ISDA  Interest Rate and Currency
Exchange Agreement  (including the Schedule  thereto),  dated as of November 15,
1996,  between the Primary Swap Counterparty and GMAC, and the Back-to-Back Swap
Confirmation.

     "Back-to-Back  Confirmation"  means the  Confirmation of Back-to-Back  Swap
Transaction  relating to the Class A-1 Notes  between  GMAC and the Primary Swap
Counterparty, which has been entered into pursuant to the ISDA Interest Rate and
Currency  Exchange  Agreement  (including  the  Schedule  thereto),  dated as of
November 15, 1996, between GMAC and the Primary Swap Counterparty.

     "Back-to-Back  Swap  Transaction"  means the  transaction  described in the
Back-to-Back Confirmation.

     "Delinquent  Payments"  means any payments owed to the Trust as a result of
liabilities, obligations and duties of the Primary Swap Counterparty pursuant to
the Primary Swap Agreement  accruing prior to the Assignment  Date that have not
been made by the Primary Swap Counterparty.

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     A  "Designated  Event"  shall  occur (a) if one or more  Events of  Default
occurs under the Primary Swap  Agreement with the Primary Swap  Counterparty  as
the Defaulting Party and the Trust notifies the Primary Swap  Counterparty  that
it is declaring a Designated Event to have occurred,  (b) upon the occurrence of
any applicable  Termination  Event under the Primary Swap Agreement in which the
Primary Swap Counterparty is an Affected Party, if no transfer is effected under
Part 1(f)(iv) of the Schedule to the Primary Swap Agreement (or in the case of a
credit  downgrade  which  results in GMAC having a higher credit rating than the
Primary Swap Counterparty,  no appropriate  arrangements pursuant to the Primary
Confirmation's  credit downgrade  provisions are made within thirty (30) days of
receipt of notice of such reduction  unless,  within thirty (30) days after such
reduction,  the  applicable  Rating  Agency  has  reconfirmed  the rating of the
Reference  Notes that was in effect  immediately  prior to such  reduction) with
respect to such event and an assignment pursuant to Section 2.01 would result in
the non-occurrence of such event as it pertains to the Primary Swap Counterparty
or (c) if the Trust receives a notice from Primary Swap Counterparty pursuant to
the provisions of Section 2.03 herein.

     "Fallback Swap Agreement"  means the ISDA Master  Agreement  (including the
Schedule  thereto),  dated as of April 15, 2002, between GMAC and the Trust, and
the Fallback Confirmation.

     "Fallback Confirmation" means the Confirmation of Fallback Swap Transaction
relating  to the Class  A-1 Notes  between  GMAC and the  Trust,  which has been
entered  into  pursuant to the ISDA Master  Agreement  (including  the  Schedule
thereto), dated as April 15, 2002, between GMAC and the Trust.

     "Fallback Swap Transaction" means the transaction described in the Fallback
Confirmation.

     "Joint Probability" has the meaning given in the Primary Confirmation.

     "Moody's" means Moody's Investors Service.

     "Operative  Swap  Agreement"  means (i) prior to the  Assignment  Date, the
Primary Swap Agreement and (ii) on and after the  Assignment  Date, the Fallback
Swap Agreement.

     "Operative Swap  Transaction"  means (i) prior to the Assignment  Date, the
Primary Swap Transaction and (ii) on and after the Assignment Date, the Fallback
Swap Transaction.

     "Primary Swap  Agreement"  means the ISDA Master  Agreement  (including the
Schedule  thereto),  dated  as of April  15,  2002,  between  the  Primary  Swap
Counterparty and the Trust, and the Primary Confirmation.

     "Primary  Confirmation"  means the Confirmation of Primary Swap Transaction
relating to the Class A-1 Notes  between the Primary Swap  Counterparty  and the
Trust,  which  has been  entered  into  pursuant  to the ISDA  Master  Agreement
(including  the  Schedule  thereto),  dated as of April 15,  2002,  between  the
Primary Swap Counterparty and the Trust.

     "Primary Swap Transaction"  means the transaction  described in the Primary
Confirmation.

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     "Requisite  Rating" means a long-term,  unsecured and  unsubordinated  debt
rating from S&P or Moody's which,  when considered  together with the long-term,
unsecured  and  unsubordinated  debt  rating  of GMAC,  would  result in a Joint
Probability of at least AA- in the case of S&P, or Aa3 in the case of Moody's.

     "Servicer"  means GMAC or its  successor as servicer  pursuant to the Trust
Sale and Servicing Agreement.

     "S&P"  means  Standard  and Poor's  Ratings  Services,  a  Division  of the
McGraw-Hill Companies and any successor.

     Section 1.02 Definitions.  Capitalized terms used in this Agreement and not
otherwise defined herein shall have the meanings specified for such terms (i) in
the Primary Swap Agreement or the  Back-to-Back  Swap Agreement,  as dictated by
its context or (ii) if not defined therein,  in Appendix A to the Trust Sale and
Servicing  Agreement,  dated as of the date hereof between the Trust, the Seller
and the  Servicer  (the  "Trust  Sale and  Servicing  Agreement").  The rules of
construction  specified  in Part  II of such  Appendix  A  shall  apply  to this
Agreement.

                                   ARTICLE II

                        Assignment Upon Designated Event

     Section 2.01  Assignment.  In the event that a Designated  Event shall have
occurred and is then  continuing  and the Trust has notified  GMAC in writing of
such   occurrence  and  continuance   and  has  provided   evidence   reasonably
satisfactory  to  GMAC  that  a  Designated  Event  has  occurred  and  is  then
continuing,  each of the following shall  automatically  occur on the Assignment
Date:

          (a) GMAC shall accede to rights and obligations equivalent to those of
     the  Primary  Swap  Counterparty  under the  Primary  Swap  Transaction  in
     accordance with the terms of the Fallback Swap Agreement (including rights,
     title and interests and liabilities,  obligations and duties accruing prior
     to the Assignment  Date).  In connection  with the foregoing,  in the event
     that there are Delinquent Payments under the Primary Swap Transaction, GMAC
     shall  promptly (and in any event no later than the next Business Day) make
     the full amount of such  Delinquent  Payments to the Trust (but only to the
     extent that GMAC has not made a  corresponding  payment  under the Fallback
     Swap  Agreement).  If,  on or  after  the  Assignment  Date,  GMAC has made
     payments to the  Primary  Swap  Counterparty  under the  Back-to-Back  Swap
     Agreement,  the Primary Swap  Counterparty  agrees to reimburse  GMAC in an
     amount  equal to the full  amount of any such  payments up to the amount of
     the Delinquent  Payments.  In the event that the Primary Swap  Counterparty
     has made payments to the Trust as a result of liabilities,  obligations and
     duties of the Primary Swap  Counterparty  accruing  prior to the Assignment
     Date in  circumstances  where  GMAC  has not  made  all or any part of such
     payments to the  Primary  Swap  Counterparty  under the  Back-to-Back  Swap
     Agreement,  GMAC agrees to reimburse  the Primary Swap  Counterparty  in an
     amount equal to the full amount of any such  payments.  Except as expressly
     provided in the third  sentence of this  paragraph (a), on and at all times
     following the Assignment Date, the Primary Swap Counterparty  shall have no
     liabilities,  obligations and duties,  including payment obligations of any
     kind,  under the Primary Swap  Agreement.  As of the  Assignment  Date, the
     Primary  Swap  Transaction  shall be governed by the terms of the  Fallback
     Swap  Agreement,  and the Primary Swap Agreement shall no longer govern the
     Primary  Swap  Transaction  (except  with  respect to rights,  liabilities,
     obligations and duties accrued prior to the Assignment Date).

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          (b) The Back-to-Back Swap Transaction shall be terminated on and as of
     the Assignment Date without further liability or obligation of either party
     thereto,  without prejudice to those rights,  liabilities,  obligations and
     duties accruing prior to the Assignment Date.

          (c) Upon (i) the effectiveness of the Fallback Swap Agreement and (ii)
     the  payment  by GMAC to the Trust in a timely  fashion  of all  Delinquent
     Payments,  if any, (x) the Event of Default or Termination  Event under the
     Primary Swap Agreement constituting such Designated Event, if any, shall be
     deemed  to be  cured  on and as of the  Assignment  Date,  and (y) no Early
     Termination  Date  (as  defined  in  the  Primary  Swap  Agreement)  may be
     designated as a result of such Designated Event.

     There  shall be no  breakage  fees or other  termination  costs or expenses
payable by the Trust to the Primary  Swap  Counterparty  or by the Primary  Swap
Counterparty  to GMAC in  connection  with an  assignment  of the  Primary  Swap
Agreement to GMAC in accordance  with this Section 2.01 and the  termination  of
the Back-to-Back  Swap Transaction as a result of the occurrence and continuance
of a Designated Event.

     Section 2.02 Additional Contingent Counterparty. If GMAC has acceded to the
rights and obligations of the Primary Swap  Counterparty  under the Primary Swap
Agreement in accordance  with the provisions of this Article II, GMAC shall have
the option to find a Person with the Requisite Rating that will either (i) enter
into an assignment  agreement  that is  substantially  similar to this Agreement
pursuant to which such Person will become the Additional Contingent Counterparty
or (ii) enter into a swap transaction  substantially similar to the Primary Swap
Transaction and a contingent  assignment agreement that is substantially similar
to this  Agreement  under  which  such  Person  would  accede to the  rights and
obligations  of GMAC under the Primary Swap  Agreement  and GMAC will become the
Additional  Contingent   Counterparty.   The  Primary  Swap  Counterparty  shall
reimburse  GMAC for all reasonable  out-of-pocket  expenses and fees incurred by
GMAC in association  with finding a party to serve as the Additional  Contingent
Counterparty.  For the avoidance of doubt, such out-of-pocket  expenses and fees
will  not  include  payments  on early  termination  resulting  from  the  early
termination of the Primary Swap  Agreement.  Any delay or inability in finding a
party to serve as the Additional Contingent  Counterparty will not result in the
occurrence of a Termination  Event, an Event of Default or otherwise lead to the
designation of an Early Termination Date under the Operative Swap Agreement.

     Section 2.03  Notice.  The Primary Swap  Counterparty  agrees that,  to the
extent that it has actual  knowledge that it will be unable to make a payment or
delivery on a scheduled payment date under the Primary Swap Agreement,  it shall
provide  notice to the Trust of such  inability at least two Business Days prior
to such  scheduled  payment  date.  This  Section 2.03 shall not be construed to
obligate the Primary Swap  Counterparty to undertake any  affirmative  action or
inquiry  to  ascertain  whether  it will be able to make  any  such  payment  or
delivery.  Any failure by the Primary Swap Counterparty to provide notice to the
Trust  of  such  inability  shall  be  without  prejudice  to the  Primary  Swap
Counterparty's rights under this Agreement and the Primary Swap Agreement.

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                                  ARTICLE III

                                  Miscellaneous

     Section 3.01  Miscellaneous.  (a) Entire  Agreement.  This  Agreement,  the
Primary Swap Agreement and the Back-to-Back Swap Agreement constitute the entire
agreement and  understanding  of the parties with respect to the subject  matter
thereof and  supersede all oral  communications  and prior  writings  (except as
otherwise provided therein) with respect thereto.

          (b)  Counterparts.  This  Agreement  may be executed and  delivered in
     counterparts  (including by facsimile  transmission)  each of which will be
     deemed an original.

          (c) Headings.  The headings used in this agreement are for convenience
     of reference only and are not to affect the  construction of or to be taken
     into consideration in interpreting this Agreement.

          (D) GOVERNING LAW. THIS AGREEMENT WILL BE GOVERNED BY AND CONSTRUED IN
     ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK  (WITHOUT  REFERENCE  TO
     CHOICE OF LAW DOCTRINE).

          (e) Notices. All demands, specifications and notices to a party hereto
     under this Agreement will be made pursuant to the provisions of the Primary
     Swap Agreement or the Back-to-Back Swap Agreement, as applicable.

          (f) No Waiver.  Notwithstanding  any other provision in this Agreement
     to the  contrary,  no full or partial  failure to exercise  and no delay in
     exercising,  on the part of any party hereto, any right,  remedy,  power or
     privilege under this Agreement, regardless of the frequency or constancy of
     such failure or delay, shall operate in any way as a waiver thereof by such
     party.

          (g) Inconsistencies.  Except as expressly provided herein, the Primary
     Swap Agreement shall not be deemed to be amended hereby in any respect.  In
     the event of any  inconsistencies  between the provisions of this Agreement
     and those of the Primary Swap Agreement or the Back-to-Back Swap Agreement,
     the provisions hereof shall prevail.

          (h)  Amendments.  This  Agreement  may not be  amended  except  by the
     execution of a written instrument by all parties hereto.

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          (i) Limitation of Liability.  It is expressly understood and agreed by
     the parties  hereto that (a) this  Agreement is executed  and  delivered by
     Deutsche Bank Trust Company  Delaware,  not in its individual  capacity but
     solely as Owner Trustee of Capital Auto  Receivables  Asset Trust 2002-2 in
     the exercise of the powers and  authority  conferred  and vested in it, (b)
     each of the representations, undertakings and agreements herein made on the
     part of the Trust is made and  intended  not as  personal  representations,
     undertakings  and agreements by Deutsche Bank Trust Company Delaware but is
     made and intended  for the purpose for binding only the Trust,  (c) nothing
     herein  contained  shall be construed as creating any liability on Deutsche
     Bank Trust  Company  Delaware in its  individual,  corporate  capacity,  to
     perform any covenant either expressed or implied contained herein, all such
     liability,  if any, being expressly waived by the parties hereto and by any
     Person  claiming by,  through or under the parties  hereto and (d) under no
     circumstances  shall  Deutsche  Bank Trust  Company  Delaware be personally
     liable for the payment of any  indebtedness  or expenses of the Trust or be
     liable  for  the  breach  or  failure  of any  obligation,  representation,
     warranty or covenant made or  undertaken by the Trust under this  Agreement
     or any other related documents.

                                     * * * *


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     IN WITNESS WHEREOF,  the parties have executed this agreement by their duly
authorized officers as of the date hereof.



                      CAPITAL AUTO RECEIVABLES ASSET TRUST 2002-2

                      By:      DEUTSCHE BANK TRUST COMPANY DELAWARE, not in its
                               individual capacity but solely as Owner Trustee


                      By:      _________________________________________________
                      Name:    _________________________________________________
                      Title:   _________________________________________________


                      GENERAL MOTORS ACCEPTANCE CORPORATION

                      By:      _________________________________________________
                      Name:    _________________________________________________
                      Title:   _________________________________________________

                      MERRILL LYNCH CAPITAL SERVICES, INC.

                      By:      _________________________________________________
                      Name:    _________________________________________________
                      Title:   _________________________________________________