EX-99 3 ex7_sc13d-gpc.txt EXHIBIT 7 EXHIBIT 7 --------- Joint Filing Agreement Pursuant to Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree that the Statement on Schedule 13D to which this exhibit is attached is filed on behalf of each of them in the capacities set forth below. Dated: August 18, 2003 EXOR GROUP S.A. By: * --------------------------------------- Peter J. Rothenberg Attorney-in-Fact Istituto Finanziario Industriale S.p.A. By: * --------------------------------------- Peter J. Rothenberg Attorney-in-Fact Giovanni Agnelli e C. S.a.p.az. By: * --------------------------------------- Peter J. Rothenberg Attorney-in-Fact /s/ Peter J. Rothenberg -------------------------------------------- * Peter J. Rothenberg Attorney-in-Fact