Last week, I picked up a brand new Polaris RZR XP 4 Turbo S in Glamis during Camp RZR. The RZR XP 4 Turbo S is Polaris’ most advanced four seat UTV with a long travel 72-inch stance and intelligent, industry-leading DYNAMIX Active Suspension system. This week, we went to Sand Mountain where we loaded it up with four adults to see how well it could handle the dunes fully loaded.