Video: Innovative Forza 4 trailed at US electronics show

Forza 4 is promising to be the innovative racing game when it arrives in the autumn, and geniuses behind the game have shown off a tantalising clip of what we can expect when it does.

Frankly, we are even more excited now than we were before, as the game appears to genuinely make good on its claims that it moves things on in the racing genre thanks, among other things, to the use of Xbox's Kinect system.