EXHIBIT 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of AutoNation, Inc. (the “Company”) for the quarter ended June 30, 2008, as filed with the U.S. Securities and Exchange Commission (the “Report”), I, Michael J. Short, Chief Financial Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)	the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Dated: July 24, 2008	/s/ Michael J. Short
	Michael J. Short
	Executive Vice President and Chief Financial Officer

The foregoing certification (i) is being furnished solely pursuant to 18 U.S.C. Section 1350, (ii) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, and (iii) shall not be deemed to be incorporated by reference into any filing of AutoNation, Inc. under the Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.