<prompt> Pedzisa mutsara unotevera: Unser akaita IndyCar yake kutanga muna 1962 kusasanganisira Pikes Peak mijaho yaive chikamu cheIndyCar mwaka muma1950s. Akamhanyira Andy Granatelli pakati pa1963 na1965 aine injini yeNovi. Unser akamhanya muIndianapolis 500 yake yokutanga muna 1963. Akadonha mangwanani ndokuva wechi 33. Unser wechipiri Indianapolis 500 mu  <response>: 1964 yakapera parwendo rwechipiri mutsaona yakauraya Eddie Sachs naDave MacDonald. Unser akatamira kuIndyCar yaiva naBob Willke kubva muna 1966 kusvika muna 1970. Kukunda kwake IndyCar kwokutanga kwakauya muna 1967 paMosport, muOntario. Gore rimwe gare gare, Unser akakunda Indianapolis 500 yake yokutanga, achigadza chinyorwa somutyairi wokutanga kumhanya makiromita anopfuura 170 paawa muIndianapolis. Muna 1968, Unser akashanda nemukuru wechikwata Jud Phillips uye akakunda yake yekutanga USAC National Driving Championship nekukunda kuStardust International Raceway, Phoenix Raceway, Trenton Speedway, Indy, uye Pikes Peak Hill Climb. 