Characteristic bodywork.
For one point, please respond and identify car and coachbuilder.
Paul Jaray did Fiats as well as far as I know
Close enough to grant you a lock. It is not exactly a Fiat, but ...
Who did the Jaray coachwork on this one?
Another Italian firm
No, the body wasn't made in Italy, and what were the German Fiats called?
up
NSU-Fiat (or Neckar?) 508 by Buhne...?
Yes, it is a NSU-Fiat with Buhne bodywork following Jaray patents. (The Neckar brand was used from the 1950s after a dispute with NSU.)
We went on leave so I missed to respond :-\
Bur I want to make a note: NSU and NSU-Fiat were two different companies, but do not know details about it.