If I lived in London (only part of the UK I've been to) or most cities in Europe, I doubt that I'd need to rely heavily on a car. Between the Tube and walking,

If I lived in London (only part of the UK I've been to) or most cities in Europe, I doubt that I'd need to rely heavily on a car. Between the Tube and walking, we got where we wanted/needed without much hassle. As an example closer in size to where I live right now: Heidelberg, Germany. Trains made it easy to get between nearby cities. Streetcars and such made it easy to get around within the city. Walking and biking were both pleasant and common. Population density didn't seem much higher than in my neighborhood, but useful businesses (groceries, bakeries, etc) were in easy walking distance from our hotel.