Gran Turismo 5 has received yet another patch, this time weighing in at nearly 150MB. The new patch required the latest PS3 Firmware update v3.55, which was released earlier today. Early reports suggest that this particular update added a setting for mechanical damage in online games, from “none”, “light” and “heavy”.
To update your copy of the game, update to the latest firmware version and then boot up GT5. You will be asked to download the patch before you can play the game.