Pure Michigan 400 – Practice

Pure Michigan 400 – Practice

BROOKLYN, MI – AUGUST 18: Greg Biffle, driver of the #16 3M Ford, talks with a crew member in the garage before the start of practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 18, 2012 in Brooklyn, Michigan. (Photo by Todd Warshaw/Getty Images)

Greg Engle