As an automobile designer, Stevens redesigned the 1962 Studebaker Gran Turismo Hawk on a minuscule budget. The fast, elegant GT remained until the end of American production. According to Hendry, Stevens also styled "three innovative products for family car use for the 1964-66 period" (which were never manufactured). He then designed Harley-Davidson motorcycles including the 1949 Hydra-Glide Harley, one of his first, helping create the new suspension forks in the front, bucket headlight, and the streamlined design. All Harleys since, including models in production now, are based on Stevens's body designs.