FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Booth Kenneth   2. Issuer Name and Ticker or Trading Symbol CREDIT ACCEPTANCE CORPORATION [CACC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) 25505 WEST TWELVE MILE ROAD 3. Date of Earliest Transaction (Month/Day/Year) 02/27/2006 (Street) SOUTHFIELD, MI 48034 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock               933 (1) D   Common Stock               679 (2) I By 401(k) Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Options (right to buy)

$ 17.045

02/27/2006

A

6,000 (3)

02/27/2006

02/27/2014

Common Stock

6,000

$ 0

10,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Booth Kenneth 25505 WEST TWELVE MILE ROAD SOUTHFIELD, MI 48034			Chief Financial Officer

Signatures

/s/ Kenneth S. Booth		03/22/2006
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Holding represents restricted stock under the Company's Incentive Compensation Plan. The shares will vest in full or in part based on the Company's satisfaction of certain performance-based criteria.
(2)	Held in the CA Stock Fund of the Credit Acceptance Corporation 401(k) Plan and Trust as of March 19, 2006, according to the Plan trustee. Holdings are shown because shares held indirectly in the 401(k) plan were inadvertently omitted from previous filings.
(3)	On February 27, 2004, the reporting person was granted 10,000 employee stock options, which would vest in installments based on the Company's satisfaction of certain performance-related criteria. On February 27, 2006, the Company's compensation committee approved the Company's satisfaction of performance-related criteria for the year ended December 31, 2005, which resulted in the vesting of 6,000 employee stock options. The remaining 4,000 options became exercisable on March 29, 2005 upon the determination that the performance criteria had been satisfied, and were reported at that time.

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