The Sony PlayStation Portable is also called the PSP which was a nice handheld console of Sony. As a Gran Turismo fan I had to have the portable edition of this game. I played it back in the days and I recall it had a special feature but I forgot which one LOL. The PSP was a nice powerful system for on the go.
I found this Gran Turismo edition with a Sony PSP Slim & Lite boxed.
YouTube:
Information:
https://en.wikipedia.org/wiki/PlayStation_Portable