35.85GB HDD space needed for Forza Horizon 2 installation
Forza Horizon 2 is available for pre-order on Xbox Live Marketplace, so the official install size was revealed for those who ordered it. Below is a picture in which you can see that the game needs 35.84GB from Xbox One’s HDD.
Microsoft has also announced that they will be releasing a demo for the game on September 16, a demo which they described to be as a “brief taste of what to expect”. The full game will come out on September 30 for Xbox One and Xbox 360.