The "7" as the eighth character into the VIN designates it as an "from the factory LC2-Turbo V6" option. It may or may not have been a GN but they would have had to get chrome trim for all around the car to make it how it is now. I'm gonna assume they just replaced the interior. Did they do the carpet black too? Kinda looks like it.
Check the dash plaque and the horn button if you can clean up the pictures. A quick glance at thr RPO codes in the trunk would tell you if it was a WE2 or not, the final word in whether it was or wasn't a GN. If so, just make sure the VINs all match and viola!, you have your answer.