Daytona 500

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Daytona 500 winner Dale Earnhardt Jr., center, arrives for a victory tour stop, Tuesday, Feb. 25, 2014, in Austin, Texas. Earnhardt won his second Daytona 500 Sunday. (AP Photo/Eric Gay)

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Daytona 500 winner Dale Earnhardt Jr. climbs out of his car as he arrives for a victory tour stop, Tuesday, Feb. 25, 2014, in Austin, Texas. Earnhardt won his second Daytona 500 Sunday. (AP Photo/Eric Gay)

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Fans cheer as Daytona 500 winner Dale Earnhardt Jr. speaks during a victory tour stop, Tuesday, Feb. 25, 2014, in Austin, Texas. Earnhardt won his second Daytona 500 Sunday. (AP Photo/Eric Gay)

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A fan of Dale Earnhardt Jr. stands with a model of the recent Daytona 500 winner's car during a victory tour stop, Tuesday, Feb. 25, 2014, in Austin, Texas. Earnhardt won his second Daytona 500 Sunday. (AP Photo/Eric Gay)

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Fans cheer as Daytona 500 winner Dale Earnhardt Jr. arrives for a victory tour stop, Tuesday, Feb. 25, 2014, in Austin, Texas. Earnhardt won his second Daytona 500 Sunday. (AP Photo/Eric Gay)

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Daytona 500 winner Dale Earnhardt Jr. talks to fans during a victory tour stop, Tuesday, Feb. 25, 2014, in Austin, Texas. Earnhardt won his second Daytona 500 Sunday. (AP Photo/Eric Gay)

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Daytona 500 winner Dale Earnhardt Jr. talks to the media during a victory tour stop, Tuesday, Feb. 25, 2014, in Austin, Texas. Earnhardt won his second Daytona 500 Sunday. (AP Photo/Eric Gay)

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Kelley Earnhardt Miller, right, celebrates after her brother, Dale Earnhardt Jr, wins 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)

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Dale Earnhardt Jr. celebrates in Victory Lane after winning 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)