GMC Sierra SLE 2020 Used Automatic Gasoline mileage: 106 KM 4WD GMC Sierra SLE Engine, gearbox, body are like new. Most of the time it's parked in the garage. Mileage is 106k. It has heavy and light 4WD, and the rest of the specifications are well-known. For any inquiries, please contact WhatsApp at 0537954442, Abu Ali. The car is for sale by offer.