Ku sii qor faqradan - Xilli ciyaareedkii 1990, kooxaha oo dhan ee isticmaala Ilmor Chevy Indy V8 waxaa la siiyay nidaam Gen-3 ah oo dib loo hagaajiyay waxayna ku guuleysteen 15 pole, 16 guul oo ay ku jiraan 1990 Indianapolis 500
, oo leh 17 tartan oo ka tirsan IndyCar World Series. Si loo caddeeyo nidaamka, qaybaha waxaa loo adeegsaday matoorrada GM ee taxanaha Trans-Am Racing intii lagu jiray 1989.