Microsoft has announced a Season Pass DLC plan for the upcoming Forza Horizon, the latest entry in the racing series that is set in a virtual representation of the state of Colorado. The Season Pass will cost $50 USD (or 4,000 Microsoft Points), and grant access to the game's Expansion Pack set to arrive in December.Season Pass holders will also nab each of the six car packs as they're released over the next year, as well as five exclusive Season Pass vehicles and a batch of launch day rides. Turn 10 will reveal all of these cars gradually on its Twitter feed. The Season Pass (which represents a 17 percent saving on all of this content) will be available for purchase on October 23, right when the game turns the key for launch.