Well done indeed, Ropat:
As it happens, I had just returned from the earlier mentioned shopping trip and had just finished Norway (obviously no result) and was well started on Danmark when my email notice went off.
It was a little confusing as I had found Hillman Minx Sunbird but continued on as I thought the title should not include Minx in the name. I just had not gotten to that last step.
In any case, a most interesting and challenging puzzle and I like that there were so many participants from so many countries involved.
BTW, two questions now that the puzzle is solved.
Was the photo location the Danish equivalent of Svenskbilprovning or perhaps the Danish importer premises. And...........does anyone know how many Sunbirds were actually sold. Danmark is a pretty small automobile market, particularly so in that era so I suspect not many.