Mark's Polaris retains a stock RZR 800 motor and transmission, but other drivetrain parts have been upgraded for the rough desert environment it must tackle.

This 2008 Polaris Ranger RZR would look great in the bed of your truck! Details inside Four Wheeler Magazine.

Regarding power, the 2011 Polaris RZR 4 800 EPS Robby Gordon Edition LE had installed a 760cc four-stroke liquid-cooled twin-cylinder engine.

The Polaris RZR, an Off-Road Thrill That Can Go Up in Flames The Polaris RZR, a vehicle for recreational use, has been linked to scores of fires and four deaths. But its maker insists it is safe.