<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngesizini ka-1990, wonke amaqembu asebenzisa i-Ilmor Chevy Indy V8 anikezwa uhlelo olusha lweGen-3 futhi lwawina ama-pole angu-15, ukunqoba okungu-16 kuhlanganise ne-Indianapolis 500 ka-1990  <response>: , nemincintiswano engu-17 e-IndyCar World Series. Ukufakazela uhlelo, izingxenye zazisetshenziswa ngezinjini ze-GM ochungechungeni lweTrans-Am Racing ngo-1989. 