Matt Kenseth (20) slides backward as he is involved in a crash with Tony Stewart (14), Jeff Gordon (24) and Carl Edwards (99) on the front stretch during the NASCAR Sprint Unlimited auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Terry Renna)
Driver Danica Patrick, left, watches as crew members make adjustments to her car during practice for the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/John Raoux)
Grant Enfinger, front right, leads a group of cars to the checkered flag to win the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/David Graham)
Grant Enfinger celebrates in Victory Lane after winning the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Terry Renna)
Grant Enfinger, lower left, celebrates with his crew in Victory Lane after winning the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Terry Renna)
Grant Enfinger celebrates in Victory Lane after winning the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Terry Renna)
Driver Bobby Labonte steers his car as his crew pushes him through the garage area during practice for the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/John Raoux)
Crew members for driver Tony Stewart work on his car after he had engine problems during a practice for the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Terry Renna)
Driver Martin Truex Jr. gets ready to go out on the track to practice for the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Terry Renna)
Crew members for driver Tony Stewart work on his car after he had engine problems during a practice for the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/Terry Renna)
Driver Danica Patrick stands by her car as her crew makes adjustment during a practice for the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/John Raoux)
Buster Graham, second from left, checks out his car after being involved in a multi-car wreck 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)
Mark Thompson (66) and Buster Graham (99) 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)
Buster Graham (99) spins along with Justin Allison (88) as other cars try to avoid them during the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/David Graham)
Mark Thompson (66), Jeb Burton (13) and Benny Gordon, back, slide off the track after they were involved in a wreck during the ARCA Series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 15, 2014. (AP Photo/David Graham)
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)