Even if we still need car parks, cars parking themselves can park really close together (no need to open doors), and block each other in (they'll move autonomou

Even if we still need car parks, cars parking themselves can park really close together (no need to open doors), and block each other in (they'll move autonomously to let another car out). If you go multi-story, you could have some floors with a really low ceiling where regular (non-SUV) cars could park at a lower price. I'd bet you'd need a lot less space for the same number of cars.