<prompt> Qedela le nkulumo elandelayo: I-USAC Championship Car ka-1964 yayihlanganisa imijaho engu-13, eyaqala e-Avondale, e-Arizona ngo-March 22 futhi yaphetha endaweni efanayo ngo-November 22. Kwakukhona nomcimbi owodwa ongewona owomqhudelwano ePikes Peak, eColorado. Umpetha we-USAC National futhi owawina i-Indianapolis 500 kwakungu-A. J. Foyt. E-Indianapolis e-  <response>: Emjahweni wamamayela angu-800, u-Eddie Sachs noDave MacDonald babulawa phakathi nomzuliswano wesibili womjaho; uSachs wayeneminyaka engu-37 ubudala, kanti uMacDonald wayeneminyaka engu-27 ubudala. Esikhumbuzweni sikaTony Bettenhausen eSpringfield, uBill Horstmeyer washona phakathi nomjaho; wayeneminyaka engu-34 ubudala. NgoNovemba, ezinsukwini ezinhlanu ngemuva kokuphela kwesizini, uBobby Marshman washona engozini yokuhlola e-Phoenix; wayeneminyaka engu-28 ubudala. 