Forza Motorsport 4 on XBox Kinect is boring. It has a wide range of vehicle selection, track selection, laps etc but its not fun playing with hands by just adjusting the direction of the car. There is no control for speed, acceleration, gears. This is one of those games that needs a controller to be more fun. I found that if you pick a fairly fast car like a McLaren or Ferrari you can easily beat the opponents to first place. There are some cars like Ford that are very sensitive to direction as you can see in one of the videos below.
The tracks and circuits are awesome but there is hardly any difference other than the turns and altitude variations. The game has 4 modes: Quick Race, Hot Lap, Split Screen and Autovista.
The Autovista feature allows user to see fine details of the car. Quick Race is for one player racing. Hot Lap is practice session without opponents and Split Screen is two player. I tested split screen but Kinect had a hard time differentiating between the two players.
Overall it was a no-brainer and easy game to play on Kinect.