Multi story car parks would make good bases for covered markets, or other community things I would suppose otherwise drive through diners would probably reclaimed the space within the restaurants. ¯\_(ツ)_/¯ housing is always a good shout but it depends on population density and access to facilities :) 

The reason you have a car park is because things you want are around it, so housing just being there instead of a car park means people have access to the things they want to use :3

I’ve wondering whether that drice through is already on its way out. Maybe it’s just me who no longer uses them, but

• I try to make healthier choices
• online order and rapid pickup is so much easier and faster
• even on road trips, my last holdout, if I’m stopping I need to use the rest area and charger anyway

Multi-story car parks make for a decent base for apartment buildings. They usually are built in areas people actually want to go to. What will be more interesting is what will happen with the large parts of cities, which will be abandoned. To make any alternative work well, you need density and that requires giving up large parts of cities, if the population stays roughly constant.