2013年3月22日NASCARスプリントカップ第4戦オートクラブ・予選 / Crew members work on the #16 3M Ford, driven by Greg Biffle (not pictured), during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 22, 2013 in Fontana, California. (Photo by Todd Warshaw/NASCAR via Getty Images) (C)nascarmedia



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