Yes but the U.S. is a HUGE country, the UK is tiny, you only have to look at the cars the Yanks drive, you wouldn't get them in a UK parking space even if you tried
If you look around most car parks i.e. supermarkets etc 90% of the cars are little hatchbacks with tiny doors and perfectly easy to park, if we decide to drive coupe's with wide doors etc then that's our choice
I think we need Hugh to tell us all about how to design a car park