Scarab was an American sports car and open-wheel race car constructor from the United States. Scarab cars were designed and built by Tom Barnes and Dick Troutman. The Scarab Mk. I Scarab Mk. II was considered to be extremely famous and successful in the late 1950s. These two cars dominated the competition in the 1958 Riverside Grand Prix despite being built by a small and newly established group of people and in a small amount of time.