2WD buggies kick 4WD b*tt up and down the Baja peninsula. And this is a box as big as a truck or bus. The low load-height bed is full width between the wheelwells.
Ars Technica did a write-up.
Ox: The flat-pack off-road truck which could revolutionize African transport | Ars Technica
Ars do good work, so we get this:
