How To Tell? R32 N1 Gt-r

[mr_rotary]

I only found out by accident a few months back that I had the R32 GT-R N1 bodykit on my GT-R

The previous owner has spent many big $$$ on my GT-R so the spoiler kit may have just been bought and added on however I would like to raise doubt as perhaps it could be a N1 GT-R?

How am I able to tell if it is a N1 GT-R? Does any one have chassis numbers of these particular models?

[Iron Chef]

Simple - if it has aircon, it ain't an N1