The Norton RCW588 is a works racing motorcycle with a twin-rotor Wankel engine produced for the 1989 to 1994 racing seasons. Initially sponsored by John Player & Sons, the Norton Rotary achieved significant racing success with riders Steve Spray, Trevor Nation, Robert Dunlop and Ron Haslam, followed by a win at the 1992 Senior TT race by Steve Hislop, and Ian Simpson winning the 1994 British Superbike Championship. The unique Wankel engine configuration measured at a capacity of 588 cc was accepted by the FIM in 1990, allowing the Norton to enter the 500 Grand Prix premier racing class.