The first DLC pack, named Mobil 1, which includes six new cars (with BMW M5 being free for everyone), has now been released for Forza Horizon 2. It is of course included in the Season Pass, but will set you back €5 / $5 / £4 if you want to buy the Mobil 1 pack separately. Here are screens and descriptions of each model to have been added to the game.