BIA: Hell's Highway 'Realism' trailer
Developer: Polyphony Digital
Publisher: Sony Computer Entertainment
Genre: Driving
Sub-Genre: Driving Simulator
Release Date: Apr 15th, 2008
Additonal Info: Available on PSN and Blu-ray
Developer: Polyphony Digital
Publisher: Sony Computer Entertainment
Genre: Racing
Sub-Genre: N/A
Release Date: Fall 2008
Additonal Info:
Developer: Polyphony Digital
Publisher: Sony Computer Entertainment
Genre: Driving
Sub-Genre: Driving Simulator
Release Date: Dec 24th, 2006
Additonal Info: A.k.a Vision Gran Turismo
According to Gran Turismo's official website (translated), GT HD Concept will be pulled from the Japanese PlayStation Store on September 30th, creating speculation that the same will occur in the US and Europe shortly after.
This move is being made in preparation for the release of Polyphony Digital's newest GT title: Gran Turismo 5 Prologue.

A free demo of GT5 Prologue will be available on the Japanese Store on October 20th, followed by the game's full release on Blu-ray and in downloadable form on December 13th.
As for all you GT HD players out there, don't worry, Polyphony Digital has confirmed that they will continue the ranks and leaderboards.
Stay tuned to PSU for more information on your Gran Turismo needs.

Gran Turismo TV
Gran Turismo 5 Prologue
Gran Turismo 5 Prologue
Gran Turismo 5 Prologue
Sounds like a smart move to me. Last Comment!!! =)
Cookie time!!!!!!
Very cool, Sony ftw...
Why does this game look even more gorgeous every time i see it.Its just brilliant!!(The detail)
...why's it being pulled? Just leave it on.
psn id: gingo... well i'm keeping it on my games list just to say in a few years 2hey i remeber hwen i dl'ed that" but a demo for prologue sounds cool
Why is it being pulled, because Gran Turismo 5 Prologue is everything GT HD is and way more. THere is no point in keeping it up on the site. I for one I'm going to delete GT HD from my HD to make room for Gran Turismo 5 Prologue.