I didn't even expect those to be doors. You should just step right over them. Excellent design I think, though not at all practical. If they would cage it in like an Atom (don't even have to make much of that exposed, put it behind the body panels and run it through the doors (they won't move anymore)) and put some real wheels and tires on it. Sure, that looks great with the bicycle ones, but it is not going to turn or brake. And it would probably have a ton of wheelspin.