Yesterday, Microsoft released their trailer for the upcoming Forza Motorsport 3, and Polyphony Digital struck back almost immediatly with their Gran Turismo 5 trailer. No release date is yet scheduled for GT5, but you can see from the trailer that Gran Turismo managed to work some deals to have WRC and NASCAR both on board with officially licensed cars and logos.
Polyphony Digital has also released a trailer for their portable version of Gran Tursimo which will be available October 1st via download to the new Playstation; PSP Go.
For more infomation, check out Gran Turismo 5