GMC Acadia 2015 Automatic Gasoline mileage: 300 KM or more Peace be upon you GMC.. GMC Acadia model 2015. Driven 320,000 km. The engine is damaged and needs overhaul or replacement. For sale for offers. Junkyard or regular user. The body has accidents from the passenger door and the rear right door, but they can be fixed by suction.