The AMC Cavalier was one of the "Project IV" concept cars in the mid-1960s that demonstrated advanced techniques of interchangeable body panels and design symmetry. The right front and left rear fenders were identical, as well as the panels for doors, hood, and deck lid all interchanged. The automobile platforms designed by Teague featured numerous interchangeable door skins, glass, and more. For example, the front and rear bumpers on the 1970 AMC Hornet were made from the same stamping. This design talent yielded significant cost savings for the company.