Greg Biffle, driver of the #16 3M Ford, spins out after hitting the wall in turn four during the NASCAR Sprint Cup Series Southern 500 on May 9, 2009 at Darlington Raceway in Darlington, South Carolina. (Photo by Chris McGrath/Getty Images) hide

Greg Biffle, driver of the #16 3M Ford, spins out after hitting the wall in turn four during the NASCAR Sprint Cup Series Southe... more