Exhibit
4.211
DOLLAR THRIFTY AUTOMOTIVE GROUP, INC.
5330 E. 31 st Street
Tulsa, Oklahoma 74135
Ambac Assurance Corporation
One State Street Plaza
New York, NY 10004
Attention: General Counsel
Financial Guaranty Insurance Company
125 Park Avenue
New York, NY 10017
Attention: General Counsel
June 2, 2009
Ladies and Gentlemen:
Reference is made in this letter
agreement (this “ Agreement ”) to (i) that
certain Insurance Agreement (the “ Ambac Insurance
Agreement ”, dated as of March 28, 2006, by and among
Rental Car Finance Corp. (“ RCFC ”), Ambac
Assurance Corporation (“ Ambac ”) and Deutsche
Bank Trust Company Americas (the “ Trustee ”);
(ii) that certain Insurance Agreement (the “ FGIC
Insurance Agreement ”, and together with the Ambac
Insurance Agreement, the “ Insurance Agreements
”), dated May 23, 2007, between Financial Guaranty Insurance
Company (“ FGIC ”) and RCFC; and (iii) that
certain Amendment No. 1 to Second Amended and Restated Master
Collateral Agency Agreement, dated as of the date hereof (the
“ MCAA Amendment ”, and the Amended and Restated
Master Collateral Agency Agreement as so amended, the “
MCAA ”), among Dollar Thrifty Automotive
Grou