Thank you for your help . Pic was made many years ago .... The man is (was) Fritz B. Busch who was a very famous writer (i love his books about old cars) . Additional he raised his own museum (please google some more pics). However i like this pic and i wondered which car that might be. When we came back from Rome this year and passed "Oberjoch", i tried to redo this pic.... OKOK, wrong car for sure
I will contact his daughter to ask if she knows about that car. Thank you; Have a great day