CONTRIBUTION AGREEMENT

Exhibit 4(f)(99)

CONTRIBUTION AGREEMENT

     This CONTRIBUTION AGREEMENT, dated as of October 29, 2007 (the “ Agreement” ), is made between CREDIT ACCEPTANCE CORPORATION, a Michigan corporation (“ CAC ”) and CREDIT ACCEPTANCE FUNDING LLC 2007-2, a Delaware limited liability company (“ Funding ”).

     Funding desires to acquire from time to time certain Dealer Loans and related rights and collateral, including certain of CAC’s rights in the Dealer Agreements related thereto, all of the related Contracts, and the Collections (other than Dealer Collections) derived therefrom during the full term of this Agreement, and CAC desires to transfer, convey and assign from time to time such Dealer Loans and related property to Funding upon the terms and conditions hereinafter set forth. CAC has also agreed to service the Dealer Loans and related property to be transferred, conveyed and assigned to Funding.

     In consideration of the premises and the mutual agreements set forth herein, it is hereby agreed by and between CAC and Funding as follows:

ARTICLE I
DEFINITIONS

     SECTION 1.1. Definitions . Capitalized terms used herein shall have the respective meanings specified herein or, if not so specified, the respective meanings specified in, or incorporated by reference into, the Sale and Servicing Agreement, and shall include in the singular number the plural and in the plural number the singular:

     “ Contributed Property ” means the Initial Contributed Property and the Subsequent Contributed Property.

     “ Initial Contributed Property ” means (i) the Dealer Loans listed on Exhibit A hereto delivered to the Servicer, the Class A Insurer, the Backup Servicer and the Trust Collateral Agent on the Closing Date and (ii) all Related Security with respect thereto.

     “ Related Security ” means, with respect to any Dealer Loans, (i) all rights under the Dealer Agreements related thereto other than the Excluded Dealer Agreement Rights, including CAC’s right to service the Dealer Loans and the related Contracts and to receive the related servicing fees and reimbursement of certain recovery and repossession expenses, in accordance with the terms of the Dealer Agreements; (ii) Collections (other than Dealer Collections) after the applicable Cut-off Date; (iii) a security interest in each Contract securing such Dealer Loan; (iv) all records and documents relating to such Dealer Loans and the Contracts; (v) all security interests purporting to secure payment of such Dealer Loans; (vi) all security interests purporting to secure payment of each Contract (including a security interest in each Financed Vehicle); (vii) all guarantees, insurance (including insurance insuring the priority or perfection of any Contract) or other agreements or arrangements securing the Contracts; and (viii) all Proceeds of the foregoing. For the avoidance of doubt, the term “Related Security” with respect to any Dealer Loan includes all rights arising under such Dealer Loan which rights are attributable to advances made under such Dealer Loan as the result of Contracts being added to the identifiable group of

Contracts to which such Dealer Loan relates after the date such Dealer Loan was sold, and not otherwise included in Subsequent Contributed Property, including all such rights arising after the last day of the last full Collection Period during the Revolving Period.

     “ Sale and Servicing Agreement ” shall mean the Sale and Servicing Agreement dated as of the Closing Date among CAC, Funding, Credit Acceptance Auto Dealer Loan Trust 2007-2, as the Issuer, Wells Fargo Bank, National Association, as the Trust Collateral Agent, Indenture Trustee and Backup Servicer.

     “ Subsequent Contributed Property ” means, with respect to any Distribution Date, (i) the Dealer Loans added to Exhibit A hereto as of such Distribution Date and (ii) all Related Security with respect thereto.

     SECTION 1.2. Other Terms . All accounting terms not specifically defined herein shall be construed in accordance with GAAP. All terms used in Article 9 of the UCC, and not specifically defined herein, are used herein as defined in such Article 9.

     SECTION 1.3. Computation of Time Periods . Unless otherwise stated in this Agreement, in the computation of a period of time from a specified date to a later specified date, the word “from” means “from and including” and the words “to” and “until” each means “to but excluding.”

ARTICLE II
CONTRIBUTION AND SALE OF DEALER LOANS

     SECTION 2.1 Contribution and Sale of Dealer Loans . (a) In consideration of the payments described in Section 3.1, effective as of the Closing Date, CAC does hereby convey, assign, sell and transfer to Funding, without recourse, except as set forth herein, all of its right, title and interest in and to the Initial Contributed Property.

     (b) CAC hereby further agrees that on each Distribution Date during the Revolving Period, in consideration of the payment described in Section 3.1 with respect to such Distribution Date, CAC shall, and CAC does hereby agree to, contribute, convey, assign, sell and transfer to Funding, without recourse, except as set forth in this Agreement, all of its right, title and interest in and to the Subsequent Contributed Property with respect to such Distribution Date.

     (c) CAC hereby further agrees that the above-described conveyances shall, without the need for any further action on the part of CAC or Funding, include all rights arising after the end of the Revolving Period under any Dealer Loan included in the Initial Contributed Property and Subsequent Contributed Property which rights are attributable to advances made under such Dealer Loans as the result of Contracts being added after the last day of the last full Collection Period during the Revolving Period to the identifiable group of Contracts to which such Dealer Loan relates.

     (d) Each such contribution, sale, assignment, transfer and conveyance does not constitute an assumption by Funding of any obligations of CAC or any other Person to Obligors or to any other Person in connection with the Dealer Loans or under any Contract, Dealer Agreement or other agreement and instrument relating to the Dealer Loans.

     (e) In connection with any such foregoing conveyance, CAC agrees to record and file on or prior to the Closing Date, at its own expense, a financing statement or statements with respect to the Contributed Property conveyed by CAC hereunder meeting the requirements of applicable state law in such manner and in such jurisdictions as are necessary to perfect the interests of Funding created hereby, and to deliver either the originals of such financing statements or a file-stamped copy of such financing statements or other evidence of such filings to Funding on the Closing Date.

     (f) CAC agrees that from time to time, at its expense, it will promptly execute and deliver all instruments and documents and take all actions as may be necessary or as Funding may reasonably request in order to perfect or protect the interest of Funding in the Dealer Loans and other Contributed Property purchased hereunder or to enable Funding to exercise or enforce any of its rights hereunder. CAC shall, upon request of Funding, obtain such additional search reports as Funding shall request. To the fullest extent permitted by applicable law, Funding shall be authorized and permitted to file continuation statements and amendments to financing statements and assignments thereof to preserve and protect its right, title and interest in, to and under the Contributed Property.

     (g) It is the express intent of CAC and Funding that the conveyance of the Dealer Loans and other Contributed Property by CAC to Funding pursuant to this Agreement be construed as an absolute sale and contribution of such Dealer Loans and other Contributed Property by CAC to Funding. Further, it is not the intention of CAC and Funding that such conveyance be deemed a grant of a security interest in the Dealer Loans and other Contributed Property by CAC to Funding in the nature of a consensual lien securing an obligation. However, in the event that, notwithstanding the express intent of the parties, the Dealer Loans and other Contributed Property are construed to constitute property of CAC, then (i) this Agreement also shall be deemed to be, and hereby is, a security agreement within the meaning of the UCC as enacted in the State of Michigan; and (ii) the conveyance by CAC provided for in this Agreement shall be deemed to be, and CAC hereby grants to Funding, a security interest in, to and under all of CAC’s right, title and interest in, to and under the Contributed Property, to secure the rights of Funding set forth in this Agreement or as may be determined in connection therewith by applicable law. CAC and Funding shall, to the extent consistent with this Agreement, take such actions as may be necessary to ensure that, if this Agreement were deemed to create such a security interest in the Dealer Loans and other Contributed Property, such security interest would be a perfected security interest in favor of Funding under applicable law and will be maintained as such throughout the term of this Agreement.

     (h) In connection with such conveyance, CAC agrees to deliver to Funding on the Closing Date, one or more computer files or microfiche lists containing true and complete lists of all Dealer Agreements and Dealer Loans conveyed to Funding on the Closing Date, and all Contracts securing all such Dealer Loans, identified by account number, dealer number and pool number. Such file or list shall be marked as Exhibit A to this Agreement, shall be delivered to Funding as confidential and proprietary, and is hereby incorporated into and made a part of this Agreement. Such list and such Exhibit A shall be supplemented and updated by lists delivered by CAC to Funding on each Distribution Date in the Revolving Period describing all Contributed Property conveyed on each such Distribution Date so that, on each such date, Funding will have an aggregate list and Exhibit A that describes all Dealer Loans conveyed by CAC to Funding

hereunder on or prior to said Distribution Date, and the related Dealer Agreements and all Contracts securing all such Dealer Loans.

     (i) CAC will reflect the transactions described in paragraph (a) of this Section 2.1 on its internal non-consolidated financial statements and on its non-consolidated state tax returns as a sale or other absolute transfer of the Dealer Loans from CAC to Funding, even though CAC will reflect this transaction on its consolidated financial statements as an “on-balance sheet” item in accordance with generally accepted accounting principles. CAC will present the data in its consolidated financial statements with an accompanying footnote describing Funding’s separate existence and stating that such item is a financing secured by the Dealer Loans and is non-recourse to CAC.

     SECTION 2.2. Servicing of Dealer Loans . The servicing, administering and collection of the Dealer Loans shall be conducted by the Servicer then authorized to act as such under the Sale and Servicing Agreement.

ARTICLE III
CONSIDERATION AND PAYMENT

     SECTION 3.1. Consideration . The consideration for the Dealer Loans and other Contributed Property conveyed on the Closing Date to Funding by CAC under this Agreement shall be an amount equal to the net cash proceeds received by Funding arising out of its conveyance on the Closing Date of Contributed Property to the Issuer under the Sale and Servicing Agreement, plus 100% of the sole membership interest in Funding. Thereafter, on each Distribution Date in the Revolving Period, the consideration for the Dealer Loans and other Contributed Property conveyed on such Distribution Date will be cash in the amount of the Aggregate Outstanding Net Eligible Loan Balance of such Dealer Loans as of such Distribution Date. The Contributed Property shall be deemed to have a value equal to the aggregate principal amount of the Dealer Loans sold and contributed by CAC to Funding.

     SECTION 3.2. Membership Interest . The membership interest of CAC in Funding shall arise on the Closing Date. Such membership interest may not be sold or otherwise transferred by CAC except as otherwise permitted in the Sale and Servicing Agreement.

ARTICLE IV
REPRESENTATIONS AND WARRANTIES

     SECTION 4.1. Representations and Warranties . CAC represents and warrants to Funding, as of the Closing Date and each Distribution Date during the Revolving Period, that:

     (a)  Organization and Good Standing . CAC is duly organized and is validly existing as a corporation in good standing under the laws of the State of Michigan, with power and authority to own its properties and to conduct its business as such properties are currently owned and such business is presently conducted, and has and had at all relevant times, full power, authority, and legal right to acquire, own, sell, and service the Dealer Loans and the related Contracts, and to perform its obligations under the Basic Documents.

     (b)  Due Qualification . CAC is duly qualified to do business as a foreign corporation in good standing, and has obtained all necessary licenses and approvals in all jurisdictions in which the ownership or lease of property or the conduct of its business, including the servicing of the Dealer Loans and the related Contracts as required by this Agreement, requires such qualifications except where such failure will not have a material adverse effect.

     (c)  Power and Authority . CAC has the power and authority to execute and deliver this Agreement and the other Basic Documents to which it is a party and to carry out their respective terms; and the execution, delivery, and performance of this Agreement and the other Basic Documents to which it is a party have been duly authorized by CAC by all necessary corporate action.

     (d)  Valid Sale; Binding Obligations . This Agreement evidences a valid sale, transfer, and assignment of the Contributed Property enforceable against creditors of and purchasers from CAC; and this Agreement and the other Basic Documents to which CAC is a party constitute legal, valid and binding obligations of CAC enforceable in accordance with their terms, subject to the effects of bankruptcy, insolvency, reorganization, or other similar laws affecting the enforcement of creditors’ or secured creditors’ rights generally and to general principles of equity.

     (e)  No Violation . The consummation of the transactions contemplated by this Agreement and the other Basic Documents to which it is a party and the fulfillment of the terms hereof and thereof do not conflict with, result in any breach of any of the terms and provisions of, or constitute (with or without notice or lapse of time) a default under, the Articles of Incorporation or by-laws of CAC, or any indenture, agreement, or other instrument to which CAC is a party or by which it is or may be bound; nor result in the creation or imposition of any Lien upon any of its properties pursuant to the terms of any such indenture, agreement (other than this Agreement), or other instrument; or violate any law or, to the best of CAC’s knowledge, any order, rule, or regulation applicable to CAC of any court or of any federal or state regulatory body, administrative agency, or other governmental instrumentality having jurisdiction over CAC or its properties.

     (f)  No Proceedings . There are no proceedings or investigations pending, or to CAC’s best knowledge threatened, before any court, regulatory body, administrative agency, or other governmental instrumentality having jurisdiction over CAC or its properties: A) asserting the invalidity of this Agreement or any other Basic Document to which it is a party; B) seeking to prevent the consummation of any of the transactions contemplated by this Agreement or any other Basic Document to which it is a party; or C) seeking any determination or ruling that might materially and adversely affect the performance by CAC of its obligations under, or the validity or enforceability of, this Agreement, or any other Basic Document to which it is a party.

     (g)  Place of Business . The principal place of business and chief executive office of CAC is in Southfield, Michigan, and the office where CAC keeps all of its Records is at the address listed in Section 8.3, or such other locations notified to Funding and the Trust Collateral Agent in accordance with this Agreement in jurisdictions where all action required by the terms of this Agreement has been taken and completed.

     (h)  Eligibility of Dealer Agreements . Each Dealer Agreement classified as an “Eligible Dealer Agreement” (or included in any aggregation of balances of “Eligible Dealer Agreements”) by CAC in any document or report delivered hereunder satisfied the requirements contained in the definition of Eligible Dealer Agreement on the date so delivered.

     (i)  Eligibility of Dealer Loans . Each Dealer Loan classified as an “Eligible Loan” (or included in any aggregation of balances of “Eligible Loans”) by CAC in any document or report delivered hereunder satisfied the requirements contained in the definition of Eligible Loan on the date so delivered.

     (j)  Eligibility of Contracts . Each Contract classified as an “Eligible Contract” (or included in any aggregation of balances of “Eligible Contracts”) by CAC in any document or report delivered hereunder satisfied the requirements contained in the definition of Eligible Contract on the date so delivered.

     (k)  Accuracy of Information . All information with respect to the Dealer Loans and other Contributed Property provided to Funding hereunder by CAC was true and correct in all material respects as of the date such information was provided to Funding and did not omit to state any material facts necessary to make the statements contained therein not misleading.

     (l)  No Liens . Each Dealer Loan and the other Contributed Property has been transferred to Funding free and clear of any Lien of any Person, and in compliance, in all material respects, with all Applicable Laws.

     (m)  No Consents . With respect to each Dealer Loan and the other Contributed Property, all consents, licenses, approvals or authorizations of or registrations or declarations with any Governmental Authority required to be obtained, effected or given by CAC, in connection with the pledge of such Contributed Property to Funding have been duly obtained, effected or given and are in full force and effect.

     (n)  Exhibit A . Exhibit A to this Agreement and each supplement or addendum thereto is and will be an accurate and complete listing of all Dealer Loans and the related Dealer Agreements and Contracts in all material respects on the date each such Dealer Loan was sold to Funding hereunder, and the information contained therein is and will be true and correct in all material respects as of such date.

     (o)  Adverse Selection . No selection procedure believed by CAC to be adverse to the interests of Funding has been or will be used in selecting the Dealer Agreements, Dealer Loans or Contracts.

     (p)  Contribution Agreement . This Contribution Agreement is the only agreement pursuant to which Funding acquires Dealer Loans from CAC.

     (q)  Security Interest . CAC has granted a security interest (as defined in the UCC as enacted in the State of Michigan) to Funding in the Contributed Property, which is enforceable in accordance with Applicable Law upon the Closing Date. Upon the filing of UCC-1 financing statements naming Funding as secured party and CAC as debtor, Funding shall have a first priority perfected security interest in the Contributed Property. All filings (including, without

limitation, UCC filings) as are necessary in any jurisdiction to perfect the interest of Funding have been made.

     (r)  Credit Score . The weighted average (based on Contract principal balance) of the Final Scores of each “Contract Group” is 665 or greater. A “Contract Group” is a group of Contracts related to a group of Dealer Loans that becomes Contributed Property on the Closing Date or on a particular Distribution Date during the Revolving Period.

     (s)  Use of Proceeds . No proceeds of any sale of Contributed Property will be used (i) for a purpose that violates, or would be inconsistent with, Regulation T, U or X promulgated by the Board of Governors of the Federal Reserve System from time to time or (ii) to acquire any security in any transaction which is subject to Section 12, 13 or 14 of the Securities Exchange Act of 1934, as amended.

     (t)  Taxes . CAC has filed on or before their respective due dates, all tax returns which are required to be filed in any jurisdiction or has obtained extensions for filing such tax returns and has paid all taxes, assessments, fees and other governmental charges against CAC or any of its properties, income or franchises, to the extent that such taxes have become due, other than any taxes or assessments, the validity of which are being contested in good faith by