Mezue ahịrịokwu na-esonụ: 1990 CART PPG Indy Car World Series oge bụ oge 12 nke mba mba nke American na-emeghe wheel na-agba ọsọ nke CART kwadoro. Oge ahụ nwere agbụrụ iri na isii, na otu ihe ngosi na-enweghị isi. Al Unser Jr. bụ onye mmeri mba ahụ, onye rookie nke afọ bụ Eddie Cheever. Ihe
1990 Indianapolis 500 bụ nke USAC kwadoro, mana agụrụ ya na CART. Arie Luyendyk meriri Indy 500, mmeri mbụ ya n'asọmpi asọmpi, na 500 kachasị ọsọ ruo 2013 Indianapolis 500.