AT4 2021 Gasoline mileage: 86 KM 2021 Sierra AT4 4WD Automatic transmission Body and engine in perfect condition, with a very small dent on the bed door. Features of the AT4 model: Fully loaded Leather seats in black and caramel colors Wireless charger Screen Driving modes Front and rear sensors Rear camera Seat heating and cooling - Separate air conditioning for driver and passenger Driver seat memory Driver's seat adjusts upon startup Keyless entry for the bed and the vehicle, as well as starting and locking the car And many other features.