<PAGE>
    As filed with the Securities and Exchange Commission on November 24, 2004

                                                              Registration No.
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                          CREDIT ACCEPTANCE CORPORATION
             (Exact name of Registrant as Specified in Its Charter)

               Michigan                                     38-1999511
     (State or Other Jurisdiction of                     (I.R.S. Employer
     Incorporation or Organization)                     Identification No.)

                     25505 West Twelve Mile Road, Suite 3000
                           Southfield, Michigan 48034
          (Address of Principal Executive Offices, including Zip Code)

            Credit Acceptance Corporation Incentive Compensation Plan
                            (Full Title of the Plan)

                                Brett A. Roberts
                          Credit Acceptance Corporation
                     25505 West Twelve Mile Road, Suite 3000
                           Southfield, Michigan 48034
                     (Name and Address of Agent for Service)

   Telephone Number, Including Area Code, of Agent for Service: (248) 353-2700

                                    Copy to:
                           Richard A Walawender, Esq.
                   Miller, Canfield, Paddock and Stone, P.L.C.
                       150 West Jefferson Ave., Suite 2500
                             Detroit, Michigan 48226
                                 (313) 496-7628

                         CALCULATION OF REGISTRATION FEE

================================================================================

<Table>
<Caption>
------------------------------------------------------------------------------------------------------------------------
Title of Securities        Amount To Be           Proposed Maximum             Proposed Maximum            Amount of
 to be Registered           Registered         Offering Price Per Share    Aggregate Offering Price     Registration Fee
------------------------------------------------------------------------------------------------------------------------
<S>                   <C>                      <C>                        <C>                           <C>
   Common Stock        1,000,000 shares(1)(2)           $24.51(3)                 $24,510,000(3)         $3,105.42(3)
------------------------------------------------------------------------------------------------------------------------
</Table>

(1) The number of shares may be adjusted to prevent dilution from stock splits,
stock dividends and similar transactions. The Registration Statement covers any
such additional shares in accordance with Rule 416(a).

(2) In addition, pursuant to Rule 416(c) under the Securities Act of 1933, this
Registration Statement also covers an indeterminate amount of interests to be
offered or sold pursuant to the employee benefit plan described herein.

(3) Estimated solely for purposes of computing the registration fee, at the
average of the high and low sale price per share on November 22, 2004 as
reported on the Nasdaq Stock Market, pursuant to Rule 457(h).


<PAGE>


                                     PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT


ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

         The following documents filed by Credit Acceptance Corporation (the
"Company") with the Securities and Exchange Commission (the "Commission") are
incorporated by reference in this Registration Statement:

         (a)      The Company's Annual Report on Form 10-K for the fiscal year
                  ended December 31, 2003;

         (b)      The Company's Quarterly Reports on Form 10-Q for the quarters
                  ended March 31, 2004, June 30, 2004, and September 30,2004;
                  and

         (c)      The description of the Common Stock of the Company under
                  "Description of Capital Stock" contained in the Registration
                  Statement on Form S-1 (No. 33-46772), incorporated by
                  reference into the Company's Registration Statement on Form
                  8-A, as amended, filed on May 12, 1992 under the Securities
                  Exchange Act of 1934.

         All documents filed by the Company with the Commission pursuant to
Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934
subsequent to the date hereof and prior to the filing of a post-effective
amendment which indicates that all securities being offered have been sold or
which deregisters all securities then remaining unsold shall be deemed to be
incorporated by reference and to be a part hereof from the date of filing of
each such document.

ITEM 4.  DESCRIPTION OF SECURITIES.

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

         Not applicable.

ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         MICHIGAN BUSINESS CORPORATION ACT. The Company is organized under the
Michigan Business Corporation Act (the "MBCA") which, in general, empowers
Michigan corporations to indemnify a person who was or is a party or is
threatened to be made a party to an action, suit or proceeding, whether civil,
criminal, administrative or investigative and whether formal or informal, other
than an action by or in the right of the corporation, by reason of the fact that
such person is or was a director, officer, employee or agent of the corporation,
or is or was serving at the request of the corporation as a director, officer,
partner, trustee, employee or agent of another enterprise, against expenses,
including attorneys' fees, judgments, penalties, fines and amounts paid in
settlement actually and reasonably incurred in connection therewith if the
person acted in good faith and in a manner reasonably believed to be in or not
opposed to the best interests of the corporation or its shareholders and, with
respect to a criminal action or proceeding, if the person had no reasonable
cause to believe his or her conduct was unlawful.

         The MBCA also empowers Michigan corporations to provide similar
indemnity to such a person for expenses, including attorneys fees, and amounts
paid in settlement actually and reasonably incurred by the person in connection
with actions or suits by or in the right of the corporation if the person acted
in good faith and in a manner the person reasonably believed to be in or not
opposed to the interests of the corporation or its shareholders, except in cases
where the person has been found liable to the corporation and the court has not
determined that the person is fairly and reasonably entitled to indemnification
in view of all relevant circumstances. If a person is successful in defending
against a derivative action or third-party action, the MBCA requires that a
Michigan corporation indemnify the person against expenses incurred in the
action.

<PAGE>

         The MBCA also permits a Michigan corporation to purchase and maintain
on behalf of such a person insurance against liabilities incurred in such
capacities.

         The MBCA further permits Michigan corporations to include a provision
in their articles of incorporation eliminating or limiting the personal
liability of directors to the corporation or its shareholders for money damages
for a breach of their fiduciary duty other than for any of the following: (i)
the amount of a financial benefit received by a director to which he or she is
not entitled; (ii) intentional infliction of harm on the corporation or the
shareholders; (iii) a violation of Section 551 of the MBCA; or (iv) an
intentional criminal act. If such a provision is included in the corporation's
articles of incorporation, the corporation may indemnify its directors without a
determination that the applicable standard of conduct has been met, except where
(i) the director received a financial benefit to which he or she is not
entitled; (ii) intentionally inflicted harm on the corporation or the
shareholders; (iii) violated Section 551 of the MBCA; or (iv) intentionally
committed a criminal act.

         ARTICLES OF INCORPORATION. As permitted by the MBCA, the Company's
Article of Incorporation limit the liability of directors to the Company and
its shareholders for monetary damages to the extent provided by law. As a
result, shareholders of the Company may be unable to recover monetary damages
against directors for actions taken by them which constitute negligence or gross
negligence or which are in violation of their fiduciary duties, although it may
be possible to obtain injunctive or other equitable relief with respect to such
actions.

         The Articles of Incorporation also obligate the Company to indemnify
directors and officers to the fullest extent permitted by law. If a claim for
indemnity is not paid in full by the Company within thirty days after a written
claim has been received, the director or officer may bring suit against the
Company to recover the unpaid amount of the claim and, if successful, is also
entitled to be paid the expense of prosecuting the claim. In any action brought
by the indemnitee to enforce a right under the indemnification provisions in the
Articles of Incorporation or by the Company to recover payments by the Company
of advances, the burden of proof shall be on the Company.

         BYLAWS. Similarly, the Company's Bylaws require the Company to
indemnify its directors and officers to the fullest extent permitted by law.
Such indemnification will be provided if such persons acted in good faith and in
a manner they reasonably believed to be in or not opposed to the best interests
of the Company or its shareholders, or in respect to a criminal proceeding, had
no reasonable cause to believe such conduct was unlawful. The Company's Bylaws
also provide that the Company may provide insurance on behalf of any person who
is or was a director or officer of the Company, or was at the request of the
Company serving as a director, officer, employee or agent of another entity,
with respect to any liability incurred or asserted by or against them as a
result of their status with the Company or such other entity. The Company has
obtained such insurance.

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

         Not applicable.

ITEM 8.  EXHIBITS.

         The following exhibits are part of this Registration Statement:

<Table>
<S>               <C>
         5        Opinion of Miller, Canfield, Paddock and Stone, P.L.C.*

         23.1     Consent of Deloitte & Touche LLP*

         23.2     Consent of Miller, Canfield, Paddock and Stone, P.L.C.
                  (contained in Exhibit 5)

         24       Power of Attorney (see "Signatures")*

         99       Credit Acceptance Corporation Incentive Compensation Plan
                  (filed as exhibit 10(q) to the Company's Form 10-Q for the
                  period ended June 30, 2004 and incorporated herein by
                  reference)
</Table>

---------
*  Filed herewith


<PAGE>



ITEM 9.  UNDERTAKINGS.

         (1) The undersigned registrant hereby undertakes to file, during any
period in which offers or sales are being made, a post-effective amendment to
this registration statement: (i) to include any prospectus required by Section
10(a)(3) of the Securities Act of 1933; (ii) to reflect in the prospectus any
facts or events arising after the effective date of this registration statement
(or the most recent post-effective amendment thereof) which, individually or in
the aggregate, represent a fundamental change in the information set forth in
this registration statement; (iii) to include any material information with
respect to the plan of distribution not previously disclosed in this
registration statement or any material change to such information in this
registration statement; provided, however, that paragraphs (1)(i) and (1)(ii) do
not apply if the information required to be included in a post-effective
amendment by those paragraphs is contained in periodic reports filed by the
registrant pursuant to Section 13 or 15(d) of the Securities Exchange Act of
1934 that are incorporated by reference in this registration statement.

         (2) The undersigned registrant hereby undertakes that, for the purpose
of determining any liability under the Securities Act of 1933, each
post-effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         (3) The undersigned registrant hereby undertakes to remove from
registration by means of a post-effective amendment any of the securities being
registered which remain unsold at the termination of the offering.

         (4) The undersigned registrant hereby undertakes that, for the purpose
of determining any liability under the Securities Act of 1933, each filing of
the registrant's annual report pursuant to Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         (5) Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.


<PAGE>


                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Southfield, State of Michigan on November 24, 2004.

                                       CREDIT ACCEPTANCE CORPORATION


                                       By: /s/ BRETT A. ROBERTS
                                           -----------------------------------
                                           Brett A. Roberts
                                           Chief Executive Officer


                                POWER OF ATTORNEY

         Each of the undersigned whose signature appears below hereby
constitutes and appoints Brett A. Roberts, Kenneth S. Booth, Douglas W. Busk,
and Charles A. Pearce and each of them acting alone, his true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all
capacities, to sign any and all amendments (including post-effective amendments)
to this Registration Statement, and to file the same, with all exhibits thereto,
and other documents in connection therewith, with the Securities and Exchange
Commission, under the Securities Act of 1933.

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated on November 23, 2004.

<Table>
<Caption>
Signature                             Title
<S>                                   <C>

/s/ BRETT A. ROBERTS                  Chief Executive Officer and Director
---------------------------------     (Principal Executive Officer)
Brett A. Roberts

/s/ KENNETH S. BOOTH                  Principal Accounting Officer
---------------------------------     (Principal Financial Officer)
Kenneth S. Booth

/s/ DONALD A. FOSS                    Director and Chairman of the Board
---------------------------------
Donald A. Foss


/s/ HARRY E. CRAIG                    Director
---------------------------------
Harry E. Craig


/s/ GLENDA FLANAGAN                   Director
---------------------------------
Glenda Flanagan

/s/ THOMAS N. TRYFOROS                Director
---------------------------------
Thomas N. Tryforos

/s/ DANIEL P. LEFF                    Director
---------------------------------
Daniel P. Leff
</Table>


<PAGE>


                                INDEX TO EXHIBITS

<Table>
<Caption>
Exhibit
Number        Description

<S> <C>
    5         Opinion of Miller, Canfield, Paddock and Stone, P.L.C.
              (including consent)*

   23         Consent of Deloitte & Touche LLP*

   99         Credit Acceptance Corporation Incentive Compensation Plan (filed
              as exhibit 10(q) to the Company's Form 10-Q for the period ended
              June 30, 2004 and incorporated herein by reference)
</Table>

---------
* Filed herewith
[{"type": "S-8", "sequence": "1", "filename": "k90040sv8.txt", "description": "REGISTRATION STATEMENT ON FORM S-8", "secsgml_size_bytes": 18058}]
{"company-data": {"conformed-name": "CREDIT ACCEPTANCE CORPORATION", "cik": "0000885550", "assigned-sic": "6141", "irs-number": "381999511", "state-of-incorporation": "MI", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-120756", "film-number": "041166795"}, "business-address": {"street1": "25505 W TWELVE MILE RD", "street2": "STE 3000", "city": "SOUTHFIELD", "state": "MI", "zip": "48034-8334", "phone": "8103532700"}, "mail-address": {"street1": "25505 WEST TWELVE MILE ROAD", "street2": "SUITE 3000", "city": "SOUTHFIELD", "state": "MI", "zip": "48034-8334"}}
As filed with the Securities and Exchange Commission on November 24, 2004

                                                              Registration No.
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                          CREDIT ACCEPTANCE CORPORATION
             (Exact name of Registrant as Specified in Its Charter)

               Michigan                                     38-1999511
     (State or Other Jurisdiction of                     (I.R.S. Employer
     Incorporation or Organization)                     Identification No.)

                     25505 West Twelve Mile Road, Suite 3000
                           Southfield, Michigan 48034
          (Address of Principal Executive Offices, including Zip Code)

            Credit Acceptance Corporation Incentive Compensation Plan
                            (Full Title of the Plan)

                                Brett A. Roberts
                          Credit Acceptance Corporation
                     25505 West Twelve Mile Road, Suite 3000
                           Southfield, Michigan 48034
                     (Name and Address of Agent for Service)

   Telephone Number, Including Area Code, of Agent for Service: (248) 353-2700

                                    Copy to:
                           Richard A Walawender, Esq.
                   Miller, Canfield, Paddock and Stone, P.L.C.
                       150 West Jefferson Ave., Suite 2500
                             Detroit, Michigan 48226
                                 (313) 496-7628

                         CALCULATION OF REGISTRATION FEE

================================================================================
------------------------------------------------------------------------------------------------------------------------
Title of Securities        Amount To Be           Proposed Maximum             Proposed Maximum            Amount of
 to be Registered           Registered         Offering Price Per Share    Aggregate Offering Price     Registration Fee
------------------------------------------------------------------------------------------------------------------------
Common Stock        1,000,000 shares(1)(2)           $24.51(3)                 $24,510,000(3)         $3,105.42(3)
------------------------------------------------------------------------------------------------------------------------
(1) The number of shares may be adjusted to prevent dilution from stock splits,
stock dividends and similar transactions. The Registration Statement covers any
such additional shares in accordance with Rule 416(a).

(2) In addition, pursuant to Rule 416(c) under the Securities Act of 1933, this
Registration Statement also covers an indeterminate amount of interests to be
offered or sold pursuant to the employee benefit plan described herein.

(3) Estimated solely for purposes of computing the registration fee, at the
average of the high and low sale price per share on November 22, 2004 as
reported on the Nasdaq Stock Market, pursuant to Rule 457(h).
PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

         The following documents filed by Credit Acceptance Corporation (the
"Company") with the Securities and Exchange Commission (the "Commission") are
incorporated by reference in this Registration Statement:

         (a)      The Company's Annual Report on Form 10-K for the fiscal year
                  ended December 31, 2003;

         (b)      The Company's Quarterly Reports on Form 10-Q for the quarters
                  ended March 31, 2004, June 30, 2004, and September 30,2004;
                  and

         (c)      The description of the Common Stock of the Company under
                  "Description of Capital Stock" contained in the Registration
                  Statement on Form S-1 (No. 33-46772), incorporated by
                  reference into the Company's Registration Statement on Form
                  8-A, as amended, filed on May 12, 1992 under the Securities
                  Exchange Act of 1934.

         All documents filed by the Company with the Commission pursuant to
Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934
subsequent to the date hereof and prior to the filing of a post-effective
amendment which indicates that all securities being offered have been sold or
which deregisters all securities then remaining unsold shall be deemed to be
incorporated by reference and to be a part hereof from the date of filing of
each such document.

ITEM 4.  DESCRIPTION OF SECURITIES.

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

         Not applicable.

ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         MICHIGAN BUSINESS CORPORATION ACT. The Company is organized under the
Michigan Business Corporation Act (the "MBCA") which, in general, empowers
Michigan corporations to indemnify a person who was or is a party or is
threatened to be made a party to an action, suit or proceeding, whether civil,
criminal, administrative or investigative and whether formal or informal, other
than an action by or in the right of the corporation, by reason of the fact that
such person is or was a director, officer, employee or agent of the corporation,
or is or was serving at the request of the corporation as a director, officer,
partner, trustee, employee or agent of another enterprise, against expenses,
including attorneys' fees, judgments, penalties, fines and amounts paid in
settlement actually and reasonably incurred in connection therewith if the
person acted in good faith and in a manner reasonably believed to be in or not
opposed to the best interests of the corporation or its shareholders and, with
respect to a criminal action or proceeding, if the person had no reasonable
cause to believe his or her conduct was unlawful.

         The MBCA also empowers Michigan corporations to provide similar
indemnity to such a person for expenses, including attorneys fees, and amounts
paid in settlement actually and reasonably incurred by the person in connection
with actions or suits by or in the right of the corporation if the person acted
in good faith and in a manner the person reasonably believed to be in or not
opposed to the interests of the corporation or its shareholders, except in cases
where the person has been found liable to the corporation and the court has not
determined that the person is fairly and reasonably entitled to indemnification
in view of all relevant circumstances. If a person is successful in defending
against a derivative action or third-party action, the MBCA requires that a
Michigan corporation indemnify the person against expenses incurred in the
action.
The MBCA also permits a Michigan corporation to purchase and maintain
on behalf of such a person insurance against liabilities incurred in such
capacities.

         The MBCA further permits Michigan corporations to include a provision
in their articles of incorporation eliminating or limiting the personal
liability of directors to the corporation or its shareholders for money damages
for a breach of their fiduciary duty other than for any of the following: (i)
the amount of a financial benefit received by a director to which he or she is
not entitled; (ii) intentional infliction of harm on the corporation or the
shareholders; (iii) a violation of Section 551 of the MBCA; or (iv) an
intentional criminal act. If such a provision is included in the corporation's
articles of incorporation, the corporation may indemnify its directors without a
determination that the applicable standard of conduct has been met, except where
(i) the director received a financial benefit to which he or she is not
entitled; (ii) intentionally inflicted harm on the corporation or the
shareholders; (iii) violated Section 551 of the MBCA; or (iv) intentionally
committed a criminal act.

         ARTICLES OF INCORPORATION. As permitted by the MBCA, the Company's
Article of Incorporation limit the liability of directors to the Company and
its shareholders for monetary damages to the extent provided by law. As a
result, shareholders of the Company may be unable to recover monetary damages
against directors for actions taken by them which constitute negligence or gross
negligence or which are in violation of their fiduciary duties, although it may
be possible to obtain injunctive or other equitable relief with respect to such
actions.

         The Articles of Incorporation also obligate the Company to indemnify
directors and officers to the fullest extent permitted by law. If a claim for
indemnity is not paid in full by the Company within thirty days after a written
claim has been received, the director or officer may bring suit against the
Company to recover the unpaid amount of the claim and, if successful, is also
entitled to be paid the expense of prosecuting the claim. In any action brought
by the indemnitee to enforce a right under the indemnification provisions in the
Articles of Incorporation or by the Company to recover payments by the Company
of advances, the burden of proof shall be on the Company.

         BYLAWS. Similarly, the Company's Bylaws require the Company to
indemnify its directors and officers to the fullest extent permitted by law.
Such indemnification will be provided if such persons acted in good faith and in
a manner they reasonably believed to be in or not opposed to the best interests
of the Company or its shareholders, or in respect to a criminal proceeding, had
no reasonable cause to believe such conduct was unlawful. The Company's Bylaws
also provide that the Company may provide insurance on behalf of any person who
is or was a director or officer of the Company, or was at the request of the
Company serving as a director, officer, employee or agent of another entity,
with respect to any liability incurred or asserted by or against them as a
result of their status with the Company or such other entity. The Company has
obtained such insurance.

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

         Not applicable.

ITEM 8.  EXHIBITS.

         The following exhibits are part of this Registration Statement:
5        Opinion of Miller, Canfield, Paddock and Stone, P.L.C.*

         23.1     Consent of Deloitte & Touche LLP*

         23.2     Consent of Miller, Canfield, Paddock and Stone, P.L.C.
                  (contained in Exhibit 5)

         24       Power of Attorney (see "Signatures")*

         99       Credit Acceptance Corporation Incentive Compensation Plan
                  (filed as exhibit 10(q) to the Company's Form 10-Q for the
                  period ended June 30, 2004 and incorporated herein by
                  reference)
---------
*  Filed herewith
ITEM 9.  UNDERTAKINGS.

         (1) The undersigned registrant hereby undertakes to file, during any
period in which offers or sales are being made, a post-effective amendment to
this registration statement: (i) to include any prospectus required by Section
10(a)(3) of the Securities Act of 1933; (ii) to reflect in the prospectus any
facts or events arising after the effective date of this registration statement
(or the most recent post-effective amendment thereof) which, individually or in
the aggregate, represent a fundamental change in the information set forth in
this registration statement; (iii) to include any material information with
respect to the plan of distribution not previously disclosed in this
registration statement or any material change to such information in this
registration statement; provided, however, that paragraphs (1)(i) and (1)(ii) do
not apply if the information required to be included in a post-effective
amendment by those paragraphs is contained in periodic reports filed by the
registrant pursuant to Section 13 or 15(d) of the Securities Exchange Act of
1934 that are incorporated by reference in this registration statement.

         (2) The undersigned registrant hereby undertakes that, for the purpose
of determining any liability under the Securities Act of 1933, each
post-effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         (3) The undersigned registrant hereby undertakes to remove from
registration by means of a post-effective amendment any of the securities being
registered which remain unsold at the termination of the offering.

         (4) The undersigned registrant hereby undertakes that, for the purpose
of determining any liability under the Securities Act of 1933, each filing of
the registrant's annual report pursuant to Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         (5) Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.
SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Southfield, State of Michigan on November 24, 2004.

                                       CREDIT ACCEPTANCE CORPORATION

                                       By: /s/ BRETT A. ROBERTS
                                           -----------------------------------
                                           Brett A. Roberts
                                           Chief Executive Officer

                                POWER OF ATTORNEY

         Each of the undersigned whose signature appears below hereby
constitutes and appoints Brett A. Roberts, Kenneth S. Booth, Douglas W. Busk,
and Charles A. Pearce and each of them acting alone, his true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all
capacities, to sign any and all amendments (including post-effective amendments)
to this Registration Statement, and to file the same, with all exhibits thereto,
and other documents in connection therewith, with the Securities and Exchange
Commission, under the Securities Act of 1933.

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated on November 23, 2004.
Signature                             Title
/s/ BRETT A. ROBERTS                  Chief Executive Officer and Director
---------------------------------     (Principal Executive Officer)
Brett A. Roberts

/s/ KENNETH S. BOOTH                  Principal Accounting Officer
---------------------------------     (Principal Financial Officer)
Kenneth S. Booth

/s/ DONALD A. FOSS                    Director and Chairman of the Board
---------------------------------
Donald A. Foss

/s/ HARRY E. CRAIG                    Director
---------------------------------
Harry E. Craig

/s/ GLENDA FLANAGAN                   Director
---------------------------------
Glenda Flanagan

/s/ THOMAS N. TRYFOROS                Director
---------------------------------
Thomas N. Tryforos

/s/ DANIEL P. LEFF                    Director
---------------------------------
Daniel P. Leff
INDEX TO EXHIBITS
Exhibit
Number        Description
5         Opinion of Miller, Canfield, Paddock and Stone, P.L.C.
              (including consent)*

   23         Consent of Deloitte & Touche LLP*

   99         Credit Acceptance Corporation Incentive Compensation Plan (filed
              as exhibit 10(q) to the Company's Form 10-Q for the period ended
              June 30, 2004 and incorporated herein by reference)
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* Filed herewith