CONCORD, NC – MAY 24: Jimmie Johnson (L), driver of the #48 Lowe’s Patriotic Chevrolet, and crew chief Chad Knaus (R) walk in the garage during practice for the NASCAR Sprint Cup Series Coca-Cola 600 at Charlotte Motor Speedway on May 24, 2012 in Concord, North Carolina. (Photo by Jamey Price/Getty Images for NASCAR)