Expanding their Polaris RZR lineup once again, the company has introduced theRZR PRO XP 4. Offered in a trio of trim levels,RZR PRO XP 4 packs loads of features and plenty of horsepower. With 181 ponies, the 4-stroke turbo twin is fitted with a larger snail to create more boost and a power band said to be focused on snappier acceleration between the all-important 20 and 50 mph range.

Spanning 64 inches in width, the chassis of theRZR PRO XP 4 wears a 125-inch wheelbase. If that sounds like a lot, you’re right: it is the longest of any RZR ever created. This might concern the off-road gearheads who want to pivot the thing through a tight and twisty trail, but Polaris has other machines better suited for that anyway. The extra length will deliver more storage in addition to extra stability through high-speed whoops and dune transitions.

The extra wheelbase also allows for an extra two gallons of fuel capacity, extending its range over the standard model. More storage shows up in this new rig as well, including an innovative ‘fold flat’ storage solution that permits riders to fold down the backseats to create additional storage behind the driver and front passenger, a move which will open up over 16 cubes of room.

Just when you thought side-by-side rigs couldn’t get any more like a road-going vehicle, eh?

Suspension components are upgraded with tubular diameters matching that of the RZR XP Turbo S. The 64-inch machine’s high-clearance suspension in the front and rear provides a yawning 14.5 inches of ground clearance. Additionally, the PRO XP 4’s 30-inch Maxxis Carnivore 2.0 tires are said to be the largest to come standard on a machine of its size. There is 17 inches of wheel travel up front and 20 inches of travel in the back.

As the top-of-the-range model, the Ultimate trim features a new Dynamix calibration. Paired with upgraded Fox 2.5 Live Valve Shocks, Dynamix 2.0 is easy to operate and – in a move bringing it even closer to an on-road machine – includes conveniently placed steering wheel controls. The Dynamix ‘X’ button sends the system to full firm, preventing bottoming out in high-speed knocks. Polaris says their new machine transfers weight faster, is more agile, and stays flatter, all of which increases confidence and comfort for all four riders.

We’ll be the judge of the latter assertions when we get behind the wheel in the upcoming months. If past experience in new RZRs is any indication, there’s a good chance it’ll check all the right boxes.