<prompt> Ramba uchiverenga ndima iyi - Mumwaka wa1990, zvikwata zvose zvaishandisa Ilmor Chevy Indy V8 zvakapiwa Gen-3 system yakagadziridzwa uye yakawana 15 pole positions, 16 yakakunda kusanganisira Indianapolis 500 ya1990  <response>: , ine makwikwi gumi nemanomwe muIndyCar World Series. Kuti aratidze hurongwa, zvikamu zvacho zvakashandiswa neinjini dzeGM muTrans-Am Racing series muna 1989. 