Get the download started as it's 1.6GB.
The demo of Forza Horizon is now available to download on Xbox LIVE Marketplace, providing you're a Gold member.
The demo features a section of Forza Horizon's Colorado roads with the option to drive a number of different cars across a variety of events, including street races across Finley Dam and the dusty roads of Colorado's upper hills.
Players of the demo will also get to try out time trial in Rivals Mode.
Everyone who downloads the demo will also receive an exclusive livery for the 2013 SRT Viper GTS for use in the full game.
Forza Horizon launches on Xbox 360 on October 26.