Kyle Busch holds the winner's trophy as he celebrates victory in Bristol. He also won the Nationwide Series race on Saturday at the same track.

Kyle Busch celebrates in victory lane after winning the Jeff Byrd 500 at Bristol Motor Speedway. It was his second race win in Bristol this weekend.

Kyle Busch drives a victory lap after winning the race at Bristol. He started the race in 12th spot.

Driver Kevin Harvick spins out as Jeff Gordon squeezes by.

Clint Bowyer gets his car back to the garage after crashing at Bristol.

Smokes pours from the car of Clint Bowyer after an engine problem during the race at Bristol.

Travis Kvapil slides down the front straight at Bristol.

Jeff Gordon and David Regan fight for position at Bristol Motor Speedway.

Jimmie Johnson battles with Kyle Busch at Bristol. Kyle ended up win the win on the short track.

Bobby Labonte spins out in front of Dave Blaney during the NASCAR Sprint Cup race at Bristol Motor Speedway.

Denny Hamlin and Juan Pablo Montoya spin in Turn 1 at Bristol.

Jimmie Johnson drives on the front straight in Bristol.

Kyle Busch makes a pit stop in the tight pits in Bristol. Kyle dominated at Bristol this weekend with both a Nationwide and Sprint Cup win.

Brad Keselowski spins out in Turn 1 in Bristol.

David Reutimann, Brian Vickers, and Denny Hamlin collide in Bristol.

Denny Hamlin has a fire ball burst from his tail pipe after crashing at Bristol.

Pole sitter Carl Edwards leads the field across the start/finish line.

Pole sitter Carl Edwards leads the field at the start of the Sprint Cup race at Bristol Motor Speedway.

Carl Edwards (99) and other drivers line up just before the green flag to start the NASCAR Sprint Cup Series auto race at Bristol Motor Speedway in Bristol, Tenn., Sunday, March 20, 2011.

Crew members push the car of Ryan Newman after it was inspected for the Bristol race.

Last year's Cup champ Jimmie Johnson signs autographs for fans before the Sprint Cup race at Bristol.

Fans crowd the pit areas as they walk the track walk before the Sprint Cup race at Bristol Motor Speedway.

Ricky Stenhouse Jr. leads the field Saturday to the start of the Nationwide race at Bristol.

Danica Patrick's car gets towed back to the garage after a crash at the Nationwide race at Bristol.

Ricky Stenhouse Jr. leads the field during the Nationwide race at Bristol Motor Speedway.

Nationwide Series driver Robert Richardson Jr. spins out into turn No. 3 during the Nationwide race at Bristol.

One of the gas can nozzles waits to see some action in Bristol.

Sprint Cup driver Joey Logano takes a lap during practice at Bristol.

Sprint Cup team owner Richard Childress checks in during practice.

Driver Trevor Bayne watches qualifying for the Nationwide Scotts EZ Seed 300 at Bristol.

Crews work on cars after Friday practice for the NASCAR Sprint Cup Series Jeff Byrd 500 at Bristol Motor Speedway.

Driver Kasey Kahne signs autographs during a break in practice for the NASCAR Nationwide Series Scotts EZ Seed 300 race at Bristol Motor Speedway.

Driver Ryan Newman watches from his pit Friday during the NASCAR Sprint Cup Series Jeff Byrd 500 at Bristol Motor Speedway.

Driver Denny Hamlin watches from the pit area during practice for the NASCAR Sprint Cup Series Jeff Byrd 500 at Bristol Motor Speedway on Friday.

Driver Kevin Harvick watches from atop his hauler during practice for the NASCAR Nationwide Series Scotts EZ Seed 300 race at Bristol Motor Speedway.

Dale Earnhardt Jr. answers questions at his Nationwide hauler during a break in practice for the Nationwide Series.

Driver Danica Patrick prepares to get in her car during practice for the NASCAR Nationwide Series Scotts EZ Seed 300 race at Bristol Motor Speedway on Friday.