Motorstorm Pacific Rift: Adrenaline Expansion

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Adrenaline Expansion contains 3 new tracks, 4 new vehicles, 26 new liveries, and 6 new characters with 3 outfits each. As with the other DLC Packs, the liveries will unlock the vehicle if you don't already have it, but only in the Adrenaline livery until you unlock it yourself in game

Source: IGDB