Ramba uchinyora ndima iyi - Mwaka we1955 weAAA Championship Car waiva nemakwikwi 11, achitanga muSpeedway, Indiana musi waMay 30 uye achiguma muPhoenix, Arizona musi waNovember 6. Paivawo nechiitiko chimwe chisiri chemakwikwi muMechanicsburg, Pennsylvania. AAA National Champion uye Indianapolis 500 anokunda akanga ari Bob Sweikert. Manny Ayulo akaurayiwa muIndianapolis paaidzidzira muIndianapolis 500 ya1955
, uye Bill Vukovich, mukundi anodzivirira kaviri, akaurawa munhangemutange yacho imene. Jack McGrath, shasha yenguva mbiri (1952, 1953), akaurawa munhangemutange yokupedzisira paPhoenix panhambo yechi85. Iri raive gore rekupedzisira reAAA National Championship; USAC yakatendera nhevedzano kutanga gore rinotevera.