European cities are built around public transport. Thus main railroad and bus stations are usually stationed downtown.
And you should note that railways in Europe are often fast and comfortable, thus using rail can get you to your inner city destination a full hour faster (only measuring from the city boundary) than going by car (degree of luxury really plays no part in city traffic speed).
Do not forget that European cities have not been built around its majesty The Car.
The majority of luxury models of European cars are made for export. Not to say they don't drive there (of course they do), but it's often quicker to travel by train so a lot of people do so, even though they own a car.