<prompt> Bhala ukuqhubeka kwalesi sigaba - ukufa kukaRoberts, kanye nokufa kuka-Eddie Sachs noDave MacDonald emjahweni wase-Indianapolis 500  <response>: , ezinsukwini eziyisithupha ngemva kokushayisana kukaRoberts, kwaholela ekwandeni kocwaningo ngezingubo zokugqoka ezingashisi. Kwaholela nasekuthuthukisweni kwe-Firestone RaceSafe fuel cell. Izimoto zemincintiswano zanamuhla zisebenzisa i-fuel cell egcwele amagwebu ukuze kuvinjelwe ukuchitheka kukaphethiloli okunjengokwemoto kaRoberts. Futhi, izembatho zokugqoka ezivikela umlilo ngokuphelele zaziyokwenziwa zibe ezomthetho, okuholela ekubeni kube nezingubo zokugqoka zomjaho zeNomex eziyimpoqo. URoberts wayelahlekelwe umngane wakhe oseduze, uJoe Weatherly, ngo-January 1964 eMotor Trend 500, eRiverside, eCalifornia. 