STP Gas Booster 500 – Practice

STP Gas Booster 500 – Practice

RIDGEWAY, VA – APRIL 05: Mark Martin, driver of the #11 FedEx Freight Toyota, practices for the NASCAR Sprint Cup Series STP Gas Booster 500 on April 5, 2013 at Martinsville Speedway in Ridgeway, Virginia. (Photo by Sean Gardner/Getty Images)

Greg Engle