I don’t know how to describe these hillbillies who build monster engines wanting to go up a hill even if it means to do a backflip, hit a tree, roll down the hill and do it again. Pay attention in the first video at 2:45 where he jumps in the air, hits a tree and continues his business. Most of these vehicles have more than 1000 horse power. Check out also the vehicle from Belarus with balloon wheels.