Sony has released its new Gran Turismo HD (PS3) trailer in Japan and this game is set to be released on the Christmas Eve. The game can be downloaded for free with 10 cars included. The game come originally in two modes, the classic mode is a micro transaction version of GT4 running on high definition with online play and gamers will be able to play the game online with their paid downloaded car from PlayStation Store.

[via Techeblog]