Hi Robbie:
This must be your Ingrid Bergman week!!
After I found the elusive Duesenberg, I today took a slower look through the "Swedish Library" that had gone untouched for so many years and found another of your puzzles.
This car is a Cadillac, with coach work by Hofslageri. The Swedish registration plate number is A 2480.
In doing further research, I came up with two different years given for the car but I think it may be a 1916 model that was completed in 1917 or at least that is my best guess.
Bill