Cika wannan jumla:
1970 - Offenhauser da injunan Ford sun mamaye filin yayin da ake ambaton yanayin iska tsakanin motocin motocin gaba na 1961 da motocin motocin baya na 1970. saurin cancanta kuma yana taka muhimmiyar rawa a cikin dukkanin filin Indy 500.