Well i thought this one was impossible. I now see it has small flaps on the dump box for dumping sideways... wow..
as for rear set of wheels, that will NEVER work in the real world. would jam up with mud or rocks and be a sitting duck.
as for propulsion, it is most likely an electric motor at each wheel. where the diesel generator is, i dunno. its a mystery lol.
on a side note it looks almost like it is from a japanese anime or something. reminds me of the AKIRA bike
