Kurt Busch and Jeff Gordon, driver of the #24 DuPont/Pepsi Max Chevrolet, lead the field to start the NASCAR Sprint Cup Series Shelby American at Las Vegas Motor Speedway. (Photo by Geoff Burke/Getty Images for NASCAR) hide

Kurt Busch and Jeff Gordon, driver of the #24 DuPont/Pepsi Max Chevrolet, lead the field to start the NASCAR Sprint Cup Series S... more