 Complete the following phrase:  The 1960 USAC Championship Car season consisted of 12 races, beginning in Trenton, New Jersey on April 10 and concluding in Phoenix, Arizona on November 20. There were also two non-championship events at Langhorne, Pennsylvania, and Pikes Peak, Colorado. This was the final year that the Indianapolis 500 was a part of the Formula One World Championship. The USAC National Champion was A. J. Foyt and the Indianapolis 500 winner was Jim Rathmann. Three time USACAAA National Champion 1954, 1956, 1957, and 