We just got back from 5 days in the dunes in West Texas and I'm proud to report the Pioneer hung with my buddies ( Wildcats , RZR's , Quads ).. I only stuck her once and it was the first day and rather than backing down once I lost forward momentum and augered in.. only made that mistake once. Sh e seemed to perform the best in 4x4 unlocked and went up anything the Wildcat 1000's and 900 RZR XP did. In fact she out climbed the Wildcat on one dune. The Wildcats and RZR would obviously walk away from us in the whoops but I expected that. The Pioneer was really fun to drive and exceeded my expectations in the dunes. Oh yeah - no problems once so ever..I like that part the most..