Thanks for all your comments on the 4/4 and all the hints what to consider....
@Heinz,
yes, I have the 4/4 "Vorführer" @ German Morgan Park on my watch list as well... that one looks nice, from 2015, so nearly new.
One additional question: What do you think about the Plus 4 "Narrow Body"? I like the line of the 4/4, so this "should" be a great combination - 2.0l engine and the nice classic line of the car.