The side by side market it taking off like crazy. Im not impressed with them yet. I think they need to go on a diet and get some more Hp. The fact the a 450 quad will run one down is boring. The RZR has twice the motor but is twice the weight. If it were a little more nimble I think it would be a blast. Ive rode most of my life so i guess my deffinition of something on two or four wheels being fast might be more then others. The other part that kills it is the price tag. I know your getting a lot of machine but 20k+ is a lot of money no matter how you look at it or how much you have to spend.