So, i bring my Moonhawk Hillclimb to Beam Mountain to test the car. Heck, why not the locals of Beam Mountain to check out the car ¯\_(ツ)_/¯
I don't think that you are supposed to do that. At least some kind of all terrain tires are needed to drive there! If you hit Pessima with a barrel right way, it will start moving really fast, despite being at neutral with handbrake on and it will just keep going and going and going.