Driver Jimmie Johnson waits for his crew to finish his car during practice for Sunday's NASCAR Sprint Cup auto race at the Martinsville Speedway in Martinsville, Va., Friday, April 1, 2011.  (AP Photo/Steve Helber)

Photo by: Steve Helber

Driver Jimmie Johnson waits for his crew to finish his car during practice for Sunday's NASCAR Sprint Cup auto race at the Martinsville Speedway in Martinsville, Va., Friday, April 1, 2011. (AP Photo/Steve Helber)