Exhibit 99.11
                                                                   -------------



    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 Annual Report of the Dollar  Thrifty  Automotive  Group,
Inc.  Retirement  Savings  Plan on Form 11-K for the period  ended  December 31,
2002, as filed with the  Securities  and Exchange  Commission on the date hereof
(the "Report"), I certify, pursuant to 18 U.S.C. ss.1350, as adopted pursuant to
ss. 906 of the Sarbanes-Oxley Act of 2002, that:

     (1)  The Report fully  complies with the  requirements  of Section 13(a) or
          15(d) of the Securities Exchange Act of 1934; and

     (2)  The  information  contained  in the  Report  fairly  presents,  in all
          material respects,  the financial  condition and results of operations
          of the Plan.




                                        /s/ Joseph E. Cappy
                                        -------------------

                                        Joseph E. Cappy
                                        Chief Executive Officer
                                        Dollar Thrifty Automotive Group, Inc.
                                        June 27, 2003



                                        /s/ Steven B. Hildebrand
                                        ------------------------

                                        Steven B. Hildebrand
                                        Chief Financial Officer
                                        Dollar Thrifty Automotive Group, Inc.
                                        June 27, 2003



A signed  original of this  written  statement  required by Section 906 has been
provided to Dollar Thrifty Automotive Group, Inc. and will be retained by Dollar
Thrifty  Automotive  Group,  Inc. and furnished to the  Securities  and Exchange
Commission or its staff upon request.