I have a friend with an 02 700SP and he has had no trouble . My 02 600 SP has given me no trouble either and it has been a terrible winter here in Maine with little snow. Although, I have heard of problems with different model XC's with overheating trouble for 2002. The dealer I purchased from called me on 3-8 and asked me if I experienced overheating trouble with mine. He said polaris is sending the parts to dealerships for an update. I understand it consists of an additional heat exchanger to be plumbed into the rear of the chassis, and 2002 owners will be receiving a letter from Polaris soon. About the 700's blowing up, every weekend a group of us get together on a river here in Maine to drag race ,we run about 2,500' back and forth all day long wide open, on days as cold as -10 and as warm as 45 deg. There are two 02 700's, two 02 600's, an 02 500, an 02 800 and some ski dooos not worth mentioning. None of the 02 polaris's have had any trouble.