A trailer for the Forza Horizon Rally Expansion has been released. As detailed back in October, the pack contains five upgradeable “rally-tuned” cars: 1982 Lancia 027 Stradale, 1992 Ford Escort RS Cosworth, 1992 Toyota Celica GT-Four RC ST185, 2004 Mitsubishi Lancer Evolution VIII MR, and the 2005 Subaru Impreza WRX STi. The pack also includes co-driver calls, new stages and online events. It will release on December 18 and will run you $20. If you purchased the Season Pass for the game, the rally pack will be included in the $50 price and comes with an extra car: the 2003 Ford Focus SVT. A video is below via IGN.