Hyundai Sonata 2015 Automatic Gasoline mileage: 300 KM or more Sonata 2015 Gearbox: Overhauled and its matters are good after overhaul, no knocks or anything. Engine: Overhauled due to manufacturing defect, oil pump changed. Chassis: Guaranteed. Airbags: Guaranteed. Mileage: 419 Suspension: Its matters are good, doesn't need anything except stabilizer bolts.