We took our 24.1 Axis there the end of last June. The only thing we had on the back of it was our bike rack with our two Motiv electric bicycles. We made the decision from the outset that we were going to use the RV as a base camp, camped at Sawtelle Moutain RV park about 20 minutes from West Yellowstone and rented a car there. We made four trips to the NP from the RV and my conclusion is that during the summer, there is no way that I would want to drive anything bigger than an auto into the park unless I had to. Great trip with the only issue being a starburst hit to the middle of the windshield right before we got to Island Park, ID. Got it repaired at WestGate Glass in West Yellowstone.