Hey guys, new here myself. I've been working with customers for the past 6 months, we just go through setting people up for general sam's muddigras and another mud racing event this next week. People fell in love with that 800XMR when it came to going through hell and back in mud and water, on youtube you have guys riding that vehicle in 3-5ft of water; i think someone actually managed to drive it on its two back wheels.
As to the differences between XT vs. XMR. I'm looking in the pamphlets to double check. Thus far everything about the engine and suspension appears the same. When it comes to those two vehicles i believe the only differences are the added features. The XT will have the bumpers, winch and cool wheels. The big difference is the XMR set up that radiator to be on top, and if you undo the cover to it you will actually see the snorkeling feature. If you are not a big mud person, you can get away with buying the XT and going through some mud, but if you like mud alot and feet of it! then just get the XMR