I did some phonecalls yesterday evening.
Got some more information on the car, but it was a mixed bag and the result (according my further internet research) was a big surprise!
(A "Facel" logo on the car was the key for further investigation):
The car should be a Ford Comete, produced by Facel metallon in France in the early 50's
http://en.m.wikipedia.org/wiki/Ford_Comète