Nascar Sprint Cup Series

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Track dryers go along the front stretch during a rain delay in the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Raoux)

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Martin Truex Jr. (78) drives his burning car across the grass after a crash during the second of two NASCAR Sprint Cup series qualifying auto races at Daytona International Speedway in Daytona Beach, Fla., Thursday, Feb. 20, 2014. (AP Photo/Terry Renna)

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Danica Patrick gets ready to go out on the track for a practice session for the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 21, 2014. (AP Photo/Phelan M. Ebenhack)

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Dale Earnhardt Jr. gets ready for a practice session for the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 21, 2014. (AP Photo/John Raoux)

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Martin Truex Jr, left, and Carl Edwards, right, lead the field at the start of the second of two NASCAR Sprint Cup series qualifying auto races at Daytona International Speedway in Daytona Beach, Fla., Thursday, Feb. 20, 2014. (AP Photo/David Graham)

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Kurt Busch, left, talks with Danica Patrick in the garage before a practice session for the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 21, 2014. (AP Photo/Phelan M. Ebenhack)

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Danica Patrick climbs in her car before the start of a practice session for the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 21, 2014. (AP Photo/Phelan M. Ebenhack)

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Austin Dillon, right, talks with his grandfather and car owner, Richard Childress, left, in his garage before a practice session for the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 21, 2014. (AP Photo/Terry Renna)

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Denny Hamlin gets ready for a practice session for the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Friday, Feb. 21, 2014. (AP Photo/Phelan M. Ebenhack)