Jeb Burton (13), Benny Gordon (11) and Mark Thompson (66) collide on the front stretch during the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Phelan M. Ebenhack)
Driver Dylan Kwasniewski poses for photos with his trophy in the garages after winning the pole position for the ARCA Series race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 14, 2014. (AP Photo/Terry Renna)
Driver Dale Earnhardt Jr. stands by his car in the garage before practice for the NASCAR Sprint Unlimited auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 14, 2014. (AP Photo/Terry Renna)
Driver Tony Stewart climbs in his car before practice for the NASCAR Sprint Unlimited auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 14, 2014. Stewart has not raced in more than six months since he broke two bones in his leg in an August 2013 sprint-car crash.(AP Photo/John Raoux)
Tony Stewart walks to his garage before practice for the Sprint Unlimited auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 14, 2014. Stewart has not raced in more than six months since he broke two bones in his leg in an August sprint-car crash.(AP Photo/John Raoux)
Driver Tony Stewart adjusts the rear view mirror in his car before going out on the track to practice for the NASCAR Sprint Unlimited auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 14, 2014. Stewart has not raced in more than six months since he broke two bones in his leg in an August 2013 sprint-car crash.(AP Photo/John Raoux)