NASCAR Cup Series

Regan Smith turned the wheel when he needed to, picking up five positions in the final four laps to finish 15th in Sunday’s Kobalt Tools 400 Sprint Cup race.

Camry driver Clint Bowyer (sixth) was the highest-finishing Toyota driver in Sunday's NASCAR Sprint Cup Series (NSCS) race at Las Vegas Motor Speedway.

TONY STEWART, NO. 14 MOBIL 1/OFFICE DEPOT CHEVROLET, RACE WINNER: ON HIS VICTORY TODAY AT LAS VEGAS MOTOR SPEEDWAY: "Man, I'm just finally glad to win one here. We were so close last year and had a dominate car. I'm not sure we had the dominate car, but we had an awful fast Mobil 1/Office Depot Chevy."

GREG BIFFLE – No. 16 Meguiars Ford Fusion – WHAT WENT ON WITH YOU AND YOUR TEAMMATES AT THE END? “I don’t know if Matt was outside of me. They told me that Matt had a run at the top and Carl was inside of me and drifting up."

Brad Keselowski (No. 2 Miller Lite Dodge Charger R/T) Finished 32nd “We had a pretty decent Dodge Charger all day, probably not as good as Tony’s (Stewart) but really strong. We were going to give him a run for his money and I was going to drive my butt off."

Fans asked for it. NASCAR agreed. SRT Motorsports and Dodge delivered. SRT Motorsports unveiled the 2013 Dodge Charger that will compete in the NASCAR Sprint Cup Series next season at Las Vegas Motor Speedway today in front of the people that asked for the change -- the fans.

We stay out west this week in the NASCAR Sprint Cup Series, and where else to hang out for a week than Sin City…

Busch grew up racing just a stones throw from were the speedways stands and he watched it be built. Dreaming of the day that he and older brother Kurt would get to race in at their home track.

BOBBY LABONTE, No. 47 Kingsford Toyota Camry, JTG-Daugherty Racing How hard has everyone at your race team been working preparing for this season? "Every team out here has great stories at how they get to Daytona or how they're building their team or how they excel or make their great team even better or more consistent for race wins and championships."

The cast of HISTORY's "Pawn Stars" will serve as grand marshals for the HISTORY 300 at Charlotte Motor Speedway on Saturday, May 26.