Thanks to its low curb weight and high curb appeal, the Chevy 150 was extremely popular with hot rudders. Chevy embraced the racing pedigree of the 150 with the "Black Widow" racing stock car. These non-production cars were built by Southern Engineering and Development Company-a special builder set up by GM. All "Black Widows" were based on the 1957 150 Utility Sedan. Many proved highly successful, with wins at the National Championship and elsewhere.