Mark Anthony Martin ( born January 9 , 1959 ) is a NASCAR driver who is driving for Hendrick Motorsports in the # 5 GoDaddy.com/Delphi/Carquest Chevrolet Impala SS . Mark Anthony Martin ( born January 9 , 1959 ) is an American stock car driver currently competing in the NASCAR Sprint Cup Series . He drives the No. 5 GoDaddy.com/Delphi/Carquest/Quaker State Chevrolet Impala for Hendrick Motorsports .