<prompt> Ramba uchiverenga ndima iyi - Muna 1970, Bartlett akaenda kuUnited States kunokwikwidza mumakwikwi eUSAC Championship aka Indy Car, achiedza uye achitadza kupinda muIndianapolis 500  <response>: . Bartlett akakwikwidza mune dzimwe nhangemutange nhatu dzeIndy Car, asi akakundikana kupedza. 