Many cities have already banned cars in their centers. It’s not a “what if”. It’s been done and works. And it takes as long to build those garages as it’d take to build those solar parks. And not like they couldn’t be done at the same time. Like instead of building solar over the car parks, why not spend the time and resources building them over warehouses and apartments?

Well there are above ground parking garages as well…

That’s a false dichotomy. I can choose a third option. Where we place car parking garages (multi-level above or underground) all around ring roads and ban cars from entering city centers. Then we put solar panels on top of most roofs, and in fields for grazing animals.

This obsession with car parks is exclusively American.

I would say let’s maybe not have car parks at all? They suck. We should as a species try to phase out personal cars, first of all. And secondly, until then, underground garages are infinitely better for everyone else.