Which Forza Horizon 2 expansion launched on 16 December 2014?

The Forza Horizon 2 expansion launched on 16 December 2014 was Storm Island. It was released for the Xbox One edition and added a storm-battered island designed around more challenging off-road driving.

Storm Island expanded the game with new tracks, five event types, five vehicles and an additional barn-find car. Its severe weather was more than scenery: the expansion used rain and storms to make visibility, grip and route choices more demanding than in many of the base-game events.

The title is easy to confuse with later Forza Horizon expansions. Blizzard Mountain belongs to Forza Horizon 3, Fortune Island belongs to Forza Horizon 4, and Rally Adventure belongs to Forza Horizon 5. Forza Horizon 2 also received the standalone Fast & Furious expansion and a later Porsche pack, but neither was the December 2014 release.