X0303 4 2008-12-01 0000350698 AUTONATION INC /FL AN 0001166559 BILL & MELINDA GATES FOUNDATION TRUST 1551 EASTLAKE AVENUE E. SEATTLE WA 98102 0 0 0 1 (See footnote 2) Common Stock 2008-12-01 4 P 0 187500 8.3012 A 10144600 D This transaction was executed in multiple trades at prices ranging from $7.98 to $8.56. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. The reporting person may be deemed to be a member of a Section 13(d) group that beneficially owns more than 10% of the issuer's outstanding Common Stock. This report shall not be deemed an admission that the reporting person and any other person or persons in fact constitute a "group" for purposes of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended, and the reporting person disclaims that it is the beneficial owner of securities owned by such other person or persons, except to the extent of the reporting person's pecuniary interest, if any, therein. *Duly authorized under Special Power of Attorney appointing Michael Larson attorney-in-fact, dated November 13, 2006, by and on behalf of William H. Gates III and Melinda French Gates, as Co-Trustees of the Bill & Melinda Gates Foundation Trust, filed as Exhibit 99.1 to the Bill & Melinda Gates Foundation Trust's Amendment No. 3 to Schedule 13G with respect to Coca-Cola FEMSA, S.A. de C.V. on February 13, 2007, SEC File No. 005-52421, and incorporated by reference herein. Bill & Melinda Gates Foundation Trust By: /s/ Michael Larson*, Attorney-in-Fact for each of the Co-Trustees, William H. Gates III and Melinda French Gates 2008-12-03