yep, it was in Gran Turismo 2 - it was a v6 cougar with no spoiler.

thats been the only video game.
GT4 apparently has two - a 99 and a 02
that would be the ulimate ego trip though wouldn't it? to have your car moddified well enough that the guys say "YOU, can be in our video game... the most popular racing game ever... millions of people will play this game, and see your car"
damn man... i dunno how i would handle that. heh!