Auto Club 400- Practice

Auto Club 400- Practice

FONTANA, CA – MARCH 21: Denny Hamlin, driver of the #11 Sport Clips Toyota, and Austin Dillon, driver of the #3 Dow Chevrolet, practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 21, 2015 in Fontana, California. (Photo by Jeff Gross/Getty Images)