I'm looking at buying a 2004 GTP. It as the GTP engine but on the inside it does not have HUD and only has the 3 buttons by the driver information center. Don't they usually come equipped with HUD and 5 buttons? It had the GTP rims also. Is it possible it just had a GTP engine put in it? Or is it actually a GTP. Just wondering because I want the discuss the price a little bit with the seller.