Gran Turismo HD could have been a strong selling point for the Playstation 3. Instead of releasing it as a stand alone title, Gran Turismo HD is going to be distributed through the Playstation Network as a free demo. Instead concepts of the game are going to be used towards Gran Turismo 5. The demo is going to be on the Playstation Store on December 24 in Japan. While other Gran Turismo demos, like GT 4: Prologue, were sold Gran Turismo HD is going to be free.