The Bruckell Moonhawk is what comes to mind whenever I think about demolition derbys. Why not make a version that has a roll cage built in, with unimportant parts removed, like bumpers, some of the chairs, and windows removed? I believe this would be fun for the multiplayer that they have planned.
You can remove things like bumpers and "unimportant" parts of the car. I'm sure somebody has already made a roll-cage for this (i think i remember seeing someone with it?).
