Porsche 911 GT3 (996) '01

The Porsche 911 GT3 (996) was a hidden car in Gran Turismo 3:A-Spec, it is only available in the game files of the NTSC version.

Gran Turismo 3:A-Spec

 * The Porsche 911 GT3 (996) appears as a hidden car in the NTSC version of the game only with the use of a Gameshark. On the PAL version, it defaults to a wide body Daihatsu MIRA TR-XX Avanzato R '97.