Forza Horizon Top Gear Car Pack trailer. CGR Trailers, from Classic Game Room®, presents the April Top Gear Car Pack trailer for FORZA HORIZON from Playground Games, Turn 10 Studios and Microsoft Studios. This add-on/expansion pack includes six brand new cars that will be available for April 2, 2013 for the Xbox Live Arcade (XBLA). Forza Horizon was released for the Xbox 360 exclusively. It was available on October 23, 2012. Enjoy!