I think it might be some kind of "car designer trend". I have seen such concept cars already from all kind of companies years ago. And common factors are: -

I think it might be some kind of "car designer trend". I have seen such concept cars already from all kind of companies years ago. And common factors are: - Ball wheels - Whole car in the "bottom plate", top in some way customizable/replaceable. - Self driving or joystick controller