Today is a good day for expanding your existing games. Forza Horizon joins the ranks of Resident Evil 6, Rage, and Need for Speed Most Wanted as a game with downloadable content available for purchase today.

In Forza's case, the DLC takes the form of a rally expansion, which we've detailed previously. For 1600 Microsoft Points ($20), the Rally Expansion Pack adds new cars that player can upgrade. It also has new terrain, challenges, and career events waiting for you. 

Check out the trailer below to see the rally racing in action.