The 1975 USAC Championship Car season consisted of 13 races, beginning in Ontario, California on March 2 and concluding in Avondale, Arizona on November 9. The USAC National Champion was A. J. Foyt and the Indianapolis 500 winner was Bobby Unser.
The 1975 USAC Championship Car season consisted of 13 races, beginning in Ontario, California on March 2 and concluding in Avondale, Arizona on November 9. The USAC National Champion was A. J. Foyt and the Indianapolis 500 winner was Bobby Unser. (en)
Die USAC-Saison 1975 war die 54. Meisterschaftssaison im US-amerikanischen Formelsport. Sie begann am 2. März in und endete am 9. November in Phoenix. A. J. Foyt sicherte sich zum sechsten Mal den Titel. (de)
USAC National Championship 1975 var ett race som vanns av A.J. Foyt. (sv)