Europeans buy Porsches from US because there are far less to choose from and they are expensive! It is possible to buy Porsches for a reasonable price from UK but they have a steering wheel on the wrong side and most EU countries do not allow RHD car into traffic, only on some very rare occasions (like person moving from one country to another).
There is a considerable following of US cars and other older classics in Nordic countries (Sweden, Finland, Norway, Estonia, Denmark) though many Eastern European countries have a "rice culture" blossoming which means fag-tuning Japanese cars and living by Fast and Furious style, even grown men.
This is of course a generalization but that is how it looks here
