I have an 08 Vector LTX GT and I can tell ya a 600cc 2 stroke is no match for it. I also have an 03 600 Polaris, that I am going to line up and compare just for fun. The 3 cylinder Vector is an awesome motor, smooth power, lots of torque and excellent fuel mileage, I average 20mpg, have gotten as good as 22.10 mpg on a very easy groomed trail ride. Playing in the powder I get 16-17 mpg. It gets better every ride!