Dale Earnhardt Jr, driver of the #88 National Guard Chevrolet seen during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Todd Warshaw/Getty Images
Kurt Busch, driver of the #78 Furniture Row Racing Chevrolet is involved in an on track incident during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Jerry Markland/Getty Images
Jimmie Johnson, driver of the #48 Lowe’s Yellow Chevrolet, during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Jared C. Tilton/Getty Images
Denny Hamlin, driver of the #11 FedEx Express Toyota, during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Chris Graythen/Getty Images
The #56 NAPA Auto Parts Toyota, driven by Martin Truex Jr, during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Jonathan Ferrey/Getty Images
Team owners Rick Hendrick and Richard Childress during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Tom Pennington/Getty Images
Damage seen on the #78 Furniture Row Racing Chevrolet, driven by Kurt Busch during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Tom Pennington/Getty Images
Damage seen on the #20 Dollar General Toyota, driven by Matt Kenseth, during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Tom Pennington/Getty Images
NASCAR Hall of Famer, Richard Petty in the garage during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Sam Greenwood/Getty Images
Kasey Kahne, driver of the #5 Farmers Insurance Chevrolet, during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Sam Greenwood/Getty Images
Jimmie Johnson, driver of the #48 Lowe’s Yellow Chevrolet, speaks with crew chief Chad Knaus during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Jerry Markland/Getty Images
The #78 car driven by Kurt Busch is worked on following an incident during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Tom Pennington/Getty Images
Joey Logano, driver of the #22 Shell-Pennzoil Ford, in the garage during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Jared C. Tilton/Getty Images
Tony Stewart, driver of the #14 Mobil 1/Bass Pro Shops Chevrolet, during practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Jerry Markland/Getty Images
Drivers during the first day of practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on Feb 15, 2013
Photo – Jared C Tilton/Getty Images