Medium Gray Metallic with Dark Claret interior. You don't see very many of those. 9 times out of 10 they had gray interiors. Don't know how many were made in your color combo, as nobody but GM does, but it isn't a buttload. Congrats, you have 1 of 3,000 examples of an 85 442. If I were to guess, since they had white, black, and gray only in 1985, and based on my own anecdotal evidence, I'd say black was the predominate color, followed by gray, then white.
Now, if it's a CANADIAN car, it's even more unique. There weren't many of those shipped to Canada. If you have a KM speedometer and KPa oil pressure gage, a "Canadian Transport" sticker on the door jamb, and an RPO "Z49" on the SPID sticker in the trunk...
It appears someone "stole" your 15 x 7 chrome SSIII wheels, though and replaced them with 15 x 7 non-chrome wheels with trim rings. And either there's no air in those air shocks or they got swapped out with standard shocks. And not sure if there was a spring change up front there. Sits a tad high it appears.
But looks good all the way to the close-to-stock-style body side molding.
It looks like you got an absolutely great starting point.