Although an official release date for Gran Turismo 5 has yet to be revealed, we know that the game will be arriving sometime in Autumn 2010. It seems that a number of retailers are showing the release date as September 24th 2010, including Play.com, CDWOW, and Zavvi.co.uk. It wouldn’t be the first time a retailer has revealed an official release date before an official announcement.

Usually, an unofficial release date isn’t shared by different retailers, but in this case at least three separate sources state exactly the same date.

[Via: TheSixthAxis]