What makes the RX-1 snowmobile of the year? I'm an arctic-cat rider and I do love the sound of the sled. The performance is yet to be seen. It seems that yamaha always hype or the magazines their sleds just like the vipers and the owners become dissappointed. Yamaha does make smooth running motors, but their suspension need some more engineering. If RX-1 don't meet the expectation of the owners they still made a nice looking sled. I can't wait ride my uncle's. He has 300 studs.