The 1972 Buick Silver Arrow III concept was designed by Bill Mitchell and introduced at the 1972 Detroit Auto Show. Based on a production Riviera, the car received many new features, including a lower roofline and redesigned quarter windows. Advanced details included high level warning lights that doubled as secondary turn signals, six halogen headlights up front for better nighttime visibility and four wheel anti-lock brakes. The Silver Arrow III was equipped with Max Trac, a forerunner of today’s traction control systems.