what do you expect most of em are driven in mud and ponds,and even down steep holes,so steep some cut the ends of the things so they can get back out,then there is the ruts and uneven muddy tracks, and the bushes and fallen trees, and the ropes and winches pulling them apart, wading through lakes if no ponds around, then they are fixed with hammers,steel bars and lots of manly swearing,then they are overloaded with stuff,ready for the breaking down,or set up to survive the wilderness and desolate savanah, of the open city car parks, of course they will break down.......