The Car of Tomorrow was unveiled at Bristol Motor Speedway Sunday afternoon in the running of the Food City 500.

For most race fans, the verdict is still out on the impact the new design will have on the overall scheme of things.

Kyle Busch won the race Sunday, holding off Jeff Burton and Jeff Gordon.

Busch never mentioned the new aerodynamics of the Nextell Cup cars and how they affected his drive to the front of the pack. The new design will get a real test when the series runs on a larger track, such as Texas Speedway in two weeks.

Kevin Harvick finished fourth and Greg Biffle placed fifth.

Gordon takes over the points lead from Mark Martin, who fell eight spots. Burton is second, just three points behind Gordon. Jimmie Johnson moved up to third, Matt Kenseth is fourth and Harvick is fifth.

Tony Stewart, who led the race for nearly 300 laps before developing fuel line problems, lost six positions in the standings.

More than 160,000 fans were in the stands to watch Sunday's race.

The Nextel Cup Series moves to Martinsville Speedway for the running of the Goody's Cool Orange 500. Race time is 1:30 p.m. Sunday.

Lernerville SpeedwayThe Action Track opens the 2007 season Friday night with a regular Fab 4 program. The Late Models, Sprints, Modifieds and Pure Stocks will be featured.Gates open at 5 p.m., racing begins at 7:30.

Mercer Raceway ParkMercer will open the season Saturday night with a special race card. The ULMS Super Late Models, E-Mods and Open Stocks are on the program.

Challenger RacewaySpring Fest 2007, featuring a 50-lap race for Late Models, is on tap at the Indiana County track Sunday. Gates open at 2 p.m. with heat races scheduled to begin at 4:30. Two other divisions are on the card.Challenger does not run a regular weekly show. Track owner Jack Lentz opted to host several special events throughout the season instead.

Inside the Loops• Pittsburgh Pennsylvania Motor Speedway opens the season on April 7 with a full program.• Sharon Speedway kicks off 2007 on April 21 with five divisions of race cars.• Officials for the MAC Late Model Series announced a tentative points fund for the 2007 season that will total nearly $100,000.• Congratulations to Danny Holtgraver and his crew of the D4 Sprint car for winning Best of Show at the annual Clearview Mall car show held in mid-March. In the Fan Favorite voting, Carl Bowser won the best Sprint car, Chuck Sarver took top honors in the Late Model class, Brian Swartzlander was named the best in the Modified class and Greg Beech won a close contest in the Pure Stock division.