<prompt> Qedela umusho olandelayo: I-USAC Gold Crown Championship isizini ka-1989-90 yayihlanganisa umjaho owodwa, i-  <response>: I-74th Indianapolis 500 ngoMeyi 27, 1990. Umpetha we-USAC National futhi owawina i-Indianapolis 500 kwakungu-Arie Luyendyk. 