In Europe there is a huge tendency to switch from cars to public transportation. Parking space in the city has become really expensive. New roads are built narrower and narrower in favor of walk-ways and bike lanes and to slow the driving speed down. In Austria there is a decline of about 1% of car owners each year.

The US has enough space for gigantic parking lots and wide roads. They don't have the same problems as in Europe. That's a huge difference that you are missing there.