http://ps2.ign.com/articles/550/550796p1.html

At the Gran Turismo 4 press conference at the Tokyo Game Show the biggest news hit the floor at the end: there will be no online after all. There was also a date given for North America and Europe and it was December 14th, but this news was followed by the unsettling phrase "will be trying to hit that date" which makes this Christmas look a little shaky for car lovers. But never mind the bad news because there was plenty to get excited about as well. Tons of cars will be included as well as miles of track and all the features you can eat. Get ready to start your virtual engines.