In an interview with Autoweek, Gran Turismo mastermind Kazunori Yamauchi says that SCEA’s marketing department is what’s holding up the U.S. release of Gran Turismo 5. The game will hit stores in Japan in March, but nothing has been even remotely announced for North America. In the same interview when asked about the inclusion of NASCAR in the game, he says that there will only be a handful of actual NASCAR tracks in the game, and that you will be able to drive the stock cars on some of the tracks in the game. The reason for this is because NASCAR wanted it that way. Interesting.