GMC Sierra Z71 2015 Automatic Gasoline mileage: 300 KM or more 4WD GMC Sierra 2015, converted to 2016, car color changed. The car has 403,000 km, subject to increase. A desirable car for the user. Gear, chassis, engine, airbags are guaranteed. The interior is clean. The car has a new set of tires, a new battery, new shock absorbers and springs, and the stabilizer is intact.