
Brad Keselowski holds up his trophy after winning the NASCAR Sprint Cup Series championship following an auto race at Homestead-Miami Speedway, Sunday, Nov. 18, 2012, in Homestead, Fla. Keselowski clinched the title after fellow contender Jimmie Johnson pulled out of the season finale because of a parts failure. Jeff Gordon won the race. (AP Photo/Terry Renna)

Brad Keselowsk is dueling with Jimmie Johnson for the Sprint Cup championship, with just races left in the season. (Associated Press)

Brad Keselowsk is dueling with Jimmie Johnson for the Sprint Cup championship, with just races left in the season. (Associated Press)

Jimmie Johnson (48) celebrates with the checkered flag in victory lane following his win in the NASCAR Sprint Cup Series auto race at Texas Motor Speedway, Sunday, Nov. 4, 2012, in Fort Worth, Texas. (AP Photo/Tony Gutierrez)

Jimmie Johnson (48) celebrates with the checkered flag in victory lane following his win in the NASCAR Sprint Cup Series auto race at Texas Motor Speedway, Sunday, Nov. 4, 2012, in Fort Worth, Texas. (AP Photo/Tony Gutierrez)

Jimmie Johnson celebrates in Victory Lane after winning the NASCAR Sprint Cup Series auto race at Martinsville Speedway, Sunday, Oct. 28, 2012, in Martinsville, Va. (AP Photo/Don Petersen)

Jimmie Johnson celebrates in Victory Lane after winning the NASCAR Sprint Cup Series auto race at Martinsville Speedway, Sunday, Oct. 28, 2012, in Martinsville, Va. (AP Photo/Don Petersen)

Driver Jimmie Johnson (48) during a NASCAR Sprint Cup Series auto race at Kansas Speedway in Kansas City, Kan., Sunday, Oct. 21, 2012. (AP Photo/Colin E. Braley)

Driver Jimmie Johnson (48) during a NASCAR Sprint Cup Series auto race at Kansas Speedway in Kansas City, Kan., Sunday, Oct. 21, 2012. (AP Photo/Colin E. Braley)