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. 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)

Kasey Kahne climbs out of his car on pit road after he was involved in a wreck during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Jeff Gordon, back center, talks with Kasey Kahne and crew members as damage to his car is evaluated after he was involved in a crash during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Joey Logano, right, walks away from his car in the garage as his crew looks over damage after he was involved in a crash during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Jamie McMurray, right, watches as crew members make adjustments to his car in his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

A pack of cars drives past the start/finish line moments before a wreck on the backstretch during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Kasey Kahne talks with crew members in his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Dale Earnhardt Jr. waits in the garage before going out on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Danica Patrick, right, signs autographs for fans after the morning session of NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Danica Patrick climbs out of her car in her garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Ricky Stenhouse Jr. prepares to go out on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Joey Logano takes a break in his garage while his crew makes adjustments to his car during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Jimmie Johnson waits in his garage while crew members make adjustments to his car during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Brad Keselowski rest his helmet on the roof of his car after being out on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Clint Bowyer waits while crew members make adjustment to his car during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Jeff Gordon talks with crew members in his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Racing tires are lined up in the garage area during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Brad Keselowski puts on his helmet before getting in his car during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Danica Patrick sits in her car in the garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Kurt Busch talks with crew in his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Aric Almirola looks over his car in his garage while waiting to go out on the track for NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Jimmie Johnson waits outside his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Jeff Gordon talks with crew members in his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Tony Stewart relaxes in his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Danica Patrick looks over her car in the garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Gas cans for Kevin Harvick's car are positioned outside his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Tony Stewart walks out of his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Tony Stewart sits in his car during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Michael Waltrip talks with friends in the garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. Waltrip will enter the Daytona 500 this season as a driver for Swan Racing.(AP Photo/John Raoux)

Joey Logano waits by his car as his crew works on it in the garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Jimmie Johnson waves to fans as he walks from his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Dale Earnhardt Jr. waves to fans outside his garage before going out on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Dale Earnhardt Jr. waits in the garage before going out on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

New design on NASCAR auto race cars is seen on a Toyota Camry to look more like a stock car during testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

New design on NASCAR auto race cars is seen on a Ford Fusion to look more like a stock car during testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Brad Keselowski drives on the track during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Car owner Jack Roush leans in the window and talks with driver Carl Edwards during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Car owner Jack Roush watches his cars on the track from the top of a hauler during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Carl Edwards relaxes in his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Joey Logano climbs in his car during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Greg Biffle walks though his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

New design on NASCAR auto race cars is seen on a Chevrolet SS to look more like a stock car during testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Brad Keselowski drives on pit road during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Paul Menard steers his car as his crew pushes him through the garages during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Kasey Kahne relaxes in his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Danica Patrick talks with one of her crew members during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Brad Keselowski makes a gesture to one of his crew members during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Joey Logano drives his car through the garage to the track during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Kasey Kahne walks through his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Dale Earnhardt Jr. removes his helmet in his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Ricky Stenhouse Jr. relaxes in his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Michael Waltrip waves as he walks through the garage during area during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. Waltrip will enter the Daytona 500 this season as a driver for Swan Racing.(AP Photo/John Raoux)

Michael Waltrip looks over the No. 15 car in the garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. Waltrip will enter the Daytona 500 this season as a driver for Swan Racing.(AP Photo/John Raoux)

Kevin Harvick (29) drives on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Michael Waltrip talks with friends in the garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. Waltrip will enter the Daytona 500 this season as a driver for Swan Racing. (AP Photo/John Raoux)

Joey Logano drives down pit road before going out on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Tony Stewart waits in his car in his garage before going out on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Marcos Ambrose, of Australia, takes a break in the garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Aric Almirola relaxes in his garage while waiting to go out on the track for NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Kurt Busch laughs with friends outside his garage during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Trevor Bayne drives his car to his garage after leaving the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Denny Hamlin drives on the track during NASCAR auto race testing at Daytona International Speedway, Thursday, Jan. 10, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Juan Pablo Montoya, of Colombia, removes his earplugs after a run on the track during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Paul Menard climbs out of his car after running laps on the track during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Jeff Gordon, left, talks with a crew member as adjustments are made to his car during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Martin Truex walks through his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Carl Edwards takes a break in his garage as his crew makes adjustments to his car during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Dave Blaney, left, meets with crew members as they look over damage to his car after he was involved in a wreck during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Driver Austin Dillon takes a break in his garage during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Brad Keselowski drives his car on the track during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Danica Patrick stands by her car after a practice session during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Roush Racing team drivers, from left, Greg Biffle, Ricky Stenhouse Jr. and Carl Edwards talk outside the garages during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Kevin Harvick walks through the garage area during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Brad Keselowski removes his helmet after driving laps on the track during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Danica Patrick drives to her garage after running laps on the track during NASCAR auto race testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

Jimmie Johnson, left, signs autographs for fans as he makes his way to the garage during NASCAR auto racing testing at Daytona International Speedway, Friday, Jan. 11, 2013, in Daytona Beach, Fla. (AP Photo/John Raoux)

FILE - In this Jan. 11, 2013, file photo, Brad Keselowski drives on pit road during NASCAR auto race testing at Daytona International Speedway in Daytona Beach, Fla. There's a buzz about NASCAR and the season-opening Daytona 500 that has nothing to do with an exploding jet dryer or a well-timed tweet. NASCAR's new Gen-6 race car makes its long-awaited debut and the success of the 2013 season could depend heavily on its performance. (AP Photo/John Raoux, File)