<prompt> Qedela umusho olandelayo: Ngesizini ka-1990, wonke amaqembu asebenzisa i-Ilmor Chevy Indy V8 anikezwa uhlelo olusha lweGen-3 futhi lwawina iziqu ezingu-15, ukunqoba okungu-16 kufaka phakathi  <response>: Ngo-1990 i-Indianapolis 500, nemincintiswano engu-17 e-IndyCar World Series. Ukufakazela uhlelo, izingxenye zazisetshenziswa ngezinjini ze-GM ochungechungeni lweTrans-Am Racing ngo-1989. 