Two-time NASCAR Nextel Cup Series champion Tony Stewart (left) talks with General Motors Racing Director Mark Kent on the track at Indianapolis Motor Speedway in Speedway, Indiana Monday, December 11, 2006 after it was announced that Chevrolet will power and sponsor Tony Stewart Racing's entries in the United States Auto Club (USAC) and the World of Outlaws Sprint Series for three years beginning in 2007. (General Motors/Ron McQueeney)