The front door seems like a bad idea.
I don’t see why they couldn’t use standard doors.
The idea is kinda interesting, even if it doesn’t really “fold” in the traditional sense.
I also don’t understand the reason for the gimmickry. You could easily do the same thing with a standard FWD vehicle with stock controls if you used flexible brake lines or some sort of separate rear brake module.
And what happens to all that loose change?