I have an 05 Arctic Cat 400 auto 4X4. It is a tank and the toughest quad that I have seen. Ya'll have seen the commercial where the guy drives one off a cliff and then flips it over and drives it away.... well that aint kidding. This past winter I made the mistake of riding when it was really cold out and stopping for awhile, well, it had snowed during my break and I didn't let the quad run long enough to warm up when I got back on. I head up a steep hill and give it gas, towards the top I let off just to find that the throttle stuck, but it was too late, by the time I tried to stop I hit a deadfall covered in snow, the quad flew atleast 10 feet off the ground and landed nose first then rolled about a dozen times down the backside of the hill. Went down, flipped it over, started it up and let it warm up for 10 minutes and rode it home. There was ZERO mechanical damage and I just bent the front bumper and rack a bit and cracked the plastic around the head light and the rear plastic. If that isn't built tough I don't know what is!