Private message Fitz he has a 53 pathfinder deluxe and has completely restored it. The technical things are the all the same on the 53. I have a 54 Laurentian that is almost perfectly stock but all I have is a lot of experience that isn't readily transferable.

The handle here is Hugh

The thing is that I need something "official" as I am not able to register it in Germany otherwise. So any idea where I can get a technical data sheet?

You should certainly give GM Vintage Vehicle Services a try.

http://www.vintagevehicleservices.com/options.html

was car shipped to germany new or imported at a later date than new

It was imported about 20 years ago. But the documents are lost.

i would try to find out what province it came out of does it have old plates on it? Any clues or old papers inside? i think you may have to do a title search from the home province search rhat car for anything a gas receipt,anything that says which province then a vin search will get ya goin good luck

like carl says his link is a good start if you can get paperwork from them it will tell you where car went new if they go back that far

Have you had any luck at all yet?
some Ideas: Name of last registered owner?
Last registered owner in Canada?
Name of importer was he a Canadian or German?
Name of Ship, Duty paid any records.
Name of Canadian Dealership might be on car trunk lid ?

Hugh