I accept your decision.
On the other hand, we do not want to penalize Fabrizio just because he is rather good at this.
Regarding my ability in this case to ID the car, my Hobby Interest as you know is wheeled military vehicles 1935-1945 and the maker Horch is very well represented as a supplier to the German military forces during that period. As such, I have a rather large data base on both civilian and military vehicles supplied by that brand and the 853 series is well represented in that data base. Some pretty interesting vehicles, both "standard" and "umbau"