The latest Forza title for the Xbox 360, Forza Motorsport, is set to receive a pair of free DLCs in the form of the "2013 Civic Si Challenge" and "Honda Challenge Car Pack."
Forza Horizon will be getting the downloadable content as a part of Honda's promotion for their newly minted car on January 15.
The pack will include a number of Honda-themed additions to Forza Horizon, including the 2013 Honda Civic Si Coupe, which is powered by a 201-horsepower engine. Also included is the HPD Rally Fit, a B-Spec road racer; and the 1986 Honda Civic Si Coupe which set the standard for Japanese hatchback cars.
The DLCs will also come with a new Rivals event where players will be able to test their skills against Scott Dixon, a real Honda Racing driver, in the "2013 Civic Si Challenge". You'll have to beat his time in the 2013 Honda Civic Si Coupe to be eligible to meet the guy in person as a part of some contest.
When it goes live on January 15, you'll be able to download the packs on Xbox LIVE.
Source: Forza Horizon Official site