> Public transport though is probably the best in the world per capita, with subway, buses or trams going every couple of minutes.

I believe Zürich would like to have a word. Not that this is a competition, but it's an even smaller city (by population) with incredibly extensive public transport that's well-known for its punctuality.

It really is quite easy living without a car when you have a multiple reasonable options in any of these cities with well-developed public transport.