Danica Patrick checks out her car while crew members make adjustments in her garage during a practice session for the NASCAR Daytona 500 Sprint Cup Series auto race at Daytona International Speedway, Saturday, Feb. 16, 2013, in Daytona Beach, Fla. (AP Photo/Phelan M. Ebenhack)
Dale Earnhardt Jr. stands by his car in his garage after he started a wreck involving a group of cars during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)
Dale Earnhardt Jr. makes a qualifying lap for the NASCAR Sprint Cup Series auto race at Daytona International Speedway, Friday, July 6, 2012, in Daytona Beach, Fla. (AP Photo/John Raoux)
Tony Stewart celebrates after winning the NASCAR Sprint Cup Series race at Daytona International Speedway, Saturday, July 7, 2012, in Daytona Beach, Fla. (AP Photo/John Raoux)
Republican presidential candidate and former Massachusetts Gov. Mitt Romney (left) walks Feb. 26, 2012, with Florida Lt. Gov. Jennifer Carroll before the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla.. (Associated Press)
AJ Allmendinger's car (22) and others remain parked on pit road due to a rain delay before the start of the Daytona 500 at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 26, 2012. The race was postponed until Monday. (AP Photo/John Raoux)
James Buescher crosses the finish line to win the Nationwide Series NASCAR Drive4COPD 300 auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 25, 2012. (AP Photo/Terry Renna)
Kyle Busch (18) beats Tony Stewart (14) to the finish line to win the NASCAR Budweiser Shootout auto race at Daytona International Speedway, Saturday, Feb. 18, 2012, in Daytona Beach, Fla. (AP Photo/John Raoux)
Auto racing driver Jimmie Johnson answers questions during an interview at NASCAR media day at Daytona International Speedway, Thursday, Feb. 16, 2012, in Daytona Beach, Fla. (AP Photo/John Raoux)
The cars of Andy Lally (71), Brian Keselowski (92), Joe Nemecheck (87), AJ Allmendinger (43), Greg Biffle (16), Michael Waltrip (15), Matt Kenseth (17), Jimmie Johnson (48), Mark Martin (5), Brian Vickers (83), Marcos Ambrose (9), and David Reutimann (00) crash during the Daytona 500 NASCAR auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 20, 2011. (AP Photo/Glenn Smith)
Smoke billows from Kevin Harvick's car (29) after an engine problem during the Daytona 500 NASCAR auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 20, 2011. (AP Photo/Jim Topper)
Brian Scott spins through the grass during practice for Saturday's NASCAR Nationwide Series auto race at Daytona International Speedway in Daytona Beach, Fla., Wednesday, Feb. 16, 2011. (AP Photo/Jim Topper)
Drivers Michael Annett (62), Elliott Sadler (2), and Kenny Wallace (09) crash during the DRIVE4COPD 300 NASCAR Nationwide series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 19, 2011. (AP Photo/Russell Williams)
Driver Michael Annett (62), Elliott Sadler (2), Tony Stewart (4) and Ricky Stenhouse Jr (6) are involved in a crash during the DRIVE4COPD 300 NASCAR Nationwide series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 19, 2011. (AP Photo/Jim Topper)
Driver Tony Stewart, front, leads the field during the DRIVE4COPD 300 NASCAR Nationwide series auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, Feb. 19, 2011. (AP Photo/Chris Graythen, Pool)