 Complete the following phrase:  Championship Auto Racing Teams CART was formed by most of the existing team owners, with some initial assistance from the SCCA in order to be recognized by ACCUS. Therefore, there were two national championships run each by USAC and CART. The Indianapolis 500 remained under USAC sanction. The top teams allied to CART, and the CART championship quickly became the more prestigious national championship. USAC ran a rump 1979 season, with few big name drivers  the only exception being A. J. Foyt. In 1979, USAC denied several of the entries from the CART teams at the 