My sincere apologies....
I appreciate your candor, Amber and wish you the best of luck with your car. It was inappropriate to resort to name-calling. I guess I'm just a little jaded from seeing so many "clones" being passed off as the genuine article (not just GN's but Chevelle SS's, Big Block 'Vettes, Hemi 'Cuda's , etc....) Please accept my apologies.
Having said that (head down, hat in hand) I wish you luck with such an "oddball" car. You'll probably sell it, but it'd probably be useful to you (or the new owner) to get some documentation from GM (if possible) to explain away the unusual features and circumstances of it's existance. I certainly don't know everything about GN's but I've never seen a car with a V.I.N. that was so far out of wack.
Please try to understand that the members of this board (of which you now are one, Welcome!) try to look out for each other, and frequently see cars on the 'net that are "questionable". When we do, we try to give each other a "heads up" on what we think is wrong. Unfortunately, it appears that I and some others jumped to some incorrect conclusions here.
BTW, I knew I had made that "assclown" comment and I'm the one who sent her the links to this post. So I wasn't "caught", I knew Amber would see this. I said something I shouldn't have and admitted I was wrong.