James "Hap" Sharp (January 1, 1928 in Tulsa, Oklahoma – May 7, 1993) was an American race car driver who drove in six Formula One grands prix. But he was best known as co-owner and driver of the revolutionary Chaparral sports racing cars built by Jim Hall and Sharp in Midland, Texas. In 1962 Jim Hall and Hap Sharp formed Chaparral Cars, Inc.