International Speedway Corporation

45b12741beb6b0074c0f6a706700ce9a.jpg

A crew member uses a squeegee to remove water from pit road during a rain delay in the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Terry Renna)

8ad922bb9f4ead074c0f6a706700ee49.jpg

Smokes billows from the car of Martin Truex Jr. during the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Raoux)

9b9c78dabf71b3074c0f6a706700fedb.jpg

Aric Almirola (43), Austin Dillon (3) and Danica Patrick (10) collide on the front stretch during the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Phelan M. Ebenhack)

47142c12bf7eb3074c0f6a706700f364.jpg

Kyle Larson (42) starts a multi-car collision between Turn 3 and Turn 4 with Austin Dillon (3), Jamie McMurray (1), Casey Mears, Marcos Ambrose (9), Kasey Kahne (5), Michael Annett (7) and Brain Vickers (55) during the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Phelan M. Ebenhack)

44022914bf7fb3074c0f6a7067000481.jpg

Michael Waltrip (66), Justin Allgaier (51) and Ricky Stenhouse Jr. (17) are involved in a crash during the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Raoux)

808e5dbcbf7fb3074c0f6a706700cb4f.jpg

Justin Allgaier (51) and David Gilliland (38) are involved in a crash as Alex Bowman (23) drives past during the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Raoux)

ae15e8ecbf85b3074c0f6a70670063db.jpg

Michael Annett (7), Kyle Larson (42), Marcos Ambrose (9), Kasey Kahne (5), and Brian Vickers (55) crash during the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Chilton)

4c4d6b70bf86b3074c0f6a7067008fca.jpg

Kyle Larson (42) and Marcos Ambrose (9) crash during the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Chilton)

0246d6ddbfbbb4074c0f6a706700847c.jpg

Dale Earnhardt Jr. (88) races to the finish line to win the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Chuck Burton)

0adac3febfbdb4074c0f6a706700327b.jpg

Dale Earnhardt Jr. (88) defeats Denny Hamlin (11) to the finish line to win the NASCAR Daytona 500 Sprint Cup series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Terry Renna)

e7d89d8fbfb6b4074c0f6a7067009a88.jpg

Dale Earnhardt Jr. drives in front of fans in the grandstands waving the checkered flag after winning 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)

815636ecbfbab4074c0f6a706700c1f8.jpg

Dale Earnhardt Jr. (88) emerges from a cloud of smoke after winning the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Phelan M. Ebenhack)

949a0bd0bfbcb4074c0f6a70670050f5.jpg

Dale Earnhardt Jr., right, takes the checkered flag as fans photograph him after winning the NASCAR Daytona 500 auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/Phelan M. Ebenhack)

310c289dbfbcb4074c0f6a706700703a.jpg

Car owner Rick Hendrick rides with Dale Earnhardt Jr. to Victory Lane as they celebrate after winning 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)