Mark Martin

Tony Stewart's car during the NASCAR Sprint Cup Series Gatorade Duel 1 at Daytona International Speedway on February 23, 2012 in Daytona Beach, Florida. (Photo credit: Getty Images)

Dramatic 1st Daytona 500 Practice With Gen-6 Car

It took all of 15 minutes for NASCAR’s new Gen-6 race car to throw drivers a few curves of its own at the first practice for the Daytona 500.

CBS Tampa–02/20/2013

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