If you have high quality transit, you might also have "share" cars available, doesn't that come out way cheaper if you only use it so little?

If I had a car, my yearly distance might have been similar. But that's because a car would give me most utility in areas that aren't handled by the "shared" car systems, i.e. longer trips outside of public transport system, especially with cargo that can't be reliably transported on a personal trip on train and the like.

And I'd probably still keep to taxis in the city, can't be arsed to drive :D

So you want to live in a dense, urban walkable core, but also allocated space for everyone to own a car they drive for 1400 km per year.

Nope.