Full Throttle

Nothing could stop Greg Biffle in Sunday’s Samsung/Radio Shack 500. Not starting 41st. Not starting in his backup car.

Biffle was dominant, leading 219 of the 334 laps en route to his second Nextel Cup victory of the season, a 3.2-second win over Jamie McMurray.

Biffle qualified fifth but had to start the race from the back of the pack having wrecked his car with 10 minutes remaining in the first practice on Saturday. But the entire Roush family of racers pulled together to prepare the backup car in time for the start of the race.

“It shows the depth of this race team this year