Since I'd first seen this Laurel, I've been on a little bit of a history research to find out details about the KC30 lineup. Like the fact that it was Nissan's first Parade Hardtop (Pillerless Coupe).
One of the first things I'd learned back then was the 3 model variants (1800, 2000, & 2000GX). I bought the Laurel knowing it was badged and had the steering wheel badge as a 2000GX, even though the engine and ID plate show it as an 1800.
I did luck out and get a hold of several Nissan promotional pictures which just really add to the mystery of my Laurel's past.
Here are two pics of the 1800:
From those pics, my Laurel does not share the grill badge, front mirrors, fender badge, the entire dash, steering wheel nor steering column.
So on to pics of the 2000:
From those pics, again the grill badge, fender mirrors and steering wheel doesn't match mine. The fender badge of course is closer. But the steering column, dash and center console match mine.
So here's the pics of the 2000GX:
From those pics, The exterior badging, fender mirrors, steering wheel and column match mine. The dash is the same basically, but the gauge arrangement doesn't match (I have no tach). I do not have the 2000GX badge and clock on my center console. Of course I don't have the power windows, but I think it was an option, because I have a different pic of the GX that doesn't look like it's got power windows.