<prompt> Pedzisa mutsara unotevera: Rufu rwaRoberts, pamwe chete norufu rwaEddie Sachs naDave MacDonald pa  <response>: Indianapolis 500, mazuva matanhatu pashure pokuparara kwaRoberts, yakatungamirira kukuwedzera mukutsvakurudza pamusoro pemapfekero omunhu anopisa moto. Zvakare zvakatungamira kukuvandudzwa kweFirestone RaceSafe fuel cell. Motokari dzemazuva ano dzomumakwikwi dzinoshandisa fuel cell ine furo kudzivirira kuti peturu isarasike zvakadai semotokari yaRoberts. Uyewo, zvipfeko zvinodzivisa moto zvizere zvaizopinzwa zvishoma nezvishoma, zvichitungamirira kumapfekero omumhanyi eNomex anomanikidzirwa. Roberts akanga arasikirwa neshamwari yake yapedyo, Joe Weatherly, muna January 1964 paMotor Trend 500, paRiverside, California. 