Driver Jimmie Johnson waits by his car before practice for Saturday's NASCAR Sprint Cup series auto race at Charlotte Motor Speedway in Concord, N.C., Friday, May 16, 2014. (AP Photo/Mike McCarn)
Driver Jimmie Johnson waits in his car before practice for Saturday's NASCAR Sprint Cup series auto race at Charlotte Motor Speedway in Concord, N.C., Friday, May 16, 2014. (AP Photo/Mike McCarn)