Tank controls, each stick would control the speed of one side of wheels.

It's a pretty silly design apart from looking like a snail.

The folding is barely space saving, also the space required for folding would mean there are no internal parts, so where's the engine?

If you hit anything you'll get catapulted off the front it your legs crushed to noodles

With your imagination.

Not OC, so just guessing, but, for the controls, I would try moving one antenna forwards and the other backwards.

Regarding the wheels, it seems sharp angles would be an issue.