Forza Motorsport 4 announced for fall 2011

Forza 4 was surprisingly announced at tonight's VGAs.

It'll feature a partnership with Top Gear. The trailer seemed to show a mix of live footage as well as footage from the game.

It also seems to hint at compatibility with Kinect. Turn 10 showed off a Forza game at E3 in june which worked with the motion camera.

Clip's below.