Look under the hood, on drivers side front wheel well for a metal plate engraved with car info. date of manufacture and paint code are there I think. My Sept. 08 made G8GT doesn't have bluetooth (I tried to follow the owners manual instructions to synch. with my cell phone..but didnt' get the proper response as described in the manual). Use that paint info to order some touchup paint as well.How would I tell if mine is a early or later GT? I just bought mine this week but it was shipped to my dealer from a closer dealer...