The ALL NEW Trailmaster Challenger 300-EX UTV Extended Cab! It climbs hills. It crosses streams. It conquers sand dunes. The 300X UTV side-by-sides are engineered to corner, cross, accelerate, climb, and take you any place you want to go. The long waited TrailMaster Challenger 300 UTV is finally here! Power is much better than the Challenger 150, tested over 1000 miles at the factory in very rough conditions!