The biggest problem with cars is city planning around car use. I live 800m away from a Supermarket which I can go to by tram (1 stop) or drive to, but I can't walk to. Suburban America is coming to Europe - except in America there is so much space for roads that Riverside, CA had more bike lanes on streets 5 years ago than I expect Madrid to have 5 years from now. The peak-to-trough part of the business cycle is an outlier. Carnot would have died laughing.
Paris apartments are way too small now - they weren't 100 years ago when kids casually played in the street. Un roi sans divertissement est un homme plein de misères