Well to the best of my knowledge there is NO set standards for emission testing in Hawaii for motor vehicles.
So there is the possibility that it never passed an emission test because it is not a requirement just like in Florida where I am.
And if the person at DMV says that it is a requirement?
He is "Lolo" (crazy) and I would be asking him if the car maybe passed the "Volcanic Smog" test there?
I don't ever recall an EPA sticker on these cars stating that they met all emission standards in all 50 States or even one for all 57 States as per President Obama either. But then again he was born in Hawaii also wasn't he?
Regardless of whether your car was a dealer demo for even 10yrs doesn't matter in the least little bit.
The FACT of the matter is that you have a 17 digit v.i.n and the 10th digit is a "B" and that means that it IS a 1981 vehicle plain and simple period no if's and's or but's.
There should be NO issue in regards to that.
Is this car still in Hawaii or is it in Denmark now?
Only reason I ask is that I'm not sure if there is ANY emission testing in Denmark?
As I told you I have sold a truck to someone in DK.
It was a full size pickup truck from Florida with dual straight exhaust without CatCons on it and there were no issues at all.
So I am not all too sure why you are having problems with this car unless you "Fudged" the purchase price and DK wants their 40% "Doody"?