the sat 1 supercup '89 was the fourth and final season of the supercup, a west german auto racing series organized by the adac and sponsored by sat 1 television. held over five events in west germany and great britain, the driver's championship was won by frenchmen bob wollek; his team joest racing won the team's championship. the series was canceled following the 1989 season, ending a yearly series of german sports car championships dating back to 1972.