Very Clean, Tons of Power! HOW BAD IS YOUR NEED FOR SPEED? The 660R Raptor. Just one look at this machine gets the heart pumping in overdrive. Could it be the aggressive, carnivorous scowl of its predatory, hawk-like bodywork? Or perhaps the fact that it's packing the biggest, hardest-hitting and highest-revving 660cc liquid-cooled, 5-valve sport ATV engine ever made? Or maybe it's the take-no-prisoners stance of its compact, super-light, 400cc-size chassis, race-bred suspension and a 5-speed, YZ-spec transmission? Actually, it's all of these things. And when taken as a whole, there's simply no sport ATV that can hold a candle to it. Anywhere.