2008 Yamaha Rhino 450 Auto. 4x4, Ready To Ride For A Great Low Price - RUGGED STYLE RUNS IN THE FAMILY. For serious outdoor people interested in driving the hardest-possible bargain on a Yamaha side-by-side, the Rhino 450 does just about everything its big brother does. In fact, it?s almost the same tested-tough vehicle but powered by a super-efficient, liquid-cooled Mikuni-carbureted 421 cc engine that cranks out plenty of torque and horsepower.