iceman320,
In the March issue of ATV Action Magazine on Pages: 50, 51, 52 and 53 is an article which resembles the RZR you saw on youtube. It is called a RZR X Apex. The Polaris RZR was modified for a Hadley Hopkins of Clovis, California. The machine has a Yamaha Apex 4 cylinder (20 valves) engine in it similar to the one in the Yamaha R1 but available on the snow mobile. MCX-USA doubled the horsepower in the engine. A turbocharger was added (MCX design) that gave this machine a very conservative 260 horsepower with an 11 pounds of boost. Of course many many modifications were done to the chassis, suspension and associated equipment. What a machine!!!
I tried to find a website so you could see this out-of-this-world rocket but was unable too.
The magazine is supposed to be on the shelf until the 19th of April. Hope you can find it.
Sid