<prompt> Bhala okuqhubekayo kwalesi sigaba - I-CART PPG Indy Car World Series isizini ka-1990 kwakuyisizini ye-12 kazwelonke yomqhudelwano wamabhayisikili aseMelika avulekile avunyelwe yi-CART. Isizini yayihlanganisa imijaho engu-16, kanye nomcimbi owodwa ongewona owokubukisa. U-Al Unser, Jr. wayengumpetha kazwelonke, futhi u-Eddie Cheever wayengumqambi wonyaka. I-Indianapolis 500 ka-1990  <response>: yayigunyazwe yi-USAC, kodwa yabalwa kumqhudelwano wamaphuzu we-CART. U-Arie Luyendyk wanqoba i-Indy 500, ukunqoba kwakhe kokuqala emncintiswaneni wezinga lobukhosi, kanye ne-500 esheshayo kuze kube yi-2013 Indianapolis 500. 