X0304 4 2011-11-07 0000350698 AUTONATION, INC. AN 0001166559 BILL & MELINDA GATES FOUNDATION TRUST 500 FIFTH AVENUE N SEATTLE WA 98119 1 (See Footnote 2) Common Stock 2011-11-07 4 S 0 250000.0000 36.0241 D 9013691.0000 D This transaction was executed in multiple trades at prices ranging from $35.85 to $36.62. The price reported above reflects the weighted-average sale 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. For purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Act"), the reporting person may be deemed to be a member of a "group" that beneficially owns more than 10% of the common stock of the issuer. Neither the filing of this Form 4 nor any of its contents shall be deemed an admission that the reporting person and any other person or persons constitute a "group" under Section 13(d) or is otherwise subject to Section 16 of the Act, and the reporting person expressly disclaims membership in a group. Bill & Melinda Gates Foundation Trust By: /s/ Alan Heuberger, Attorney-in-fact for each of the Co-Trustees, William H. Gates III and Melinda French Gates 2011-11-09