AT4 2023 Automatic Gasoline mileage: 56 KM 4WD Sierra AT4 2023 And the well-known specifications of the AT4, which needs no introduction. Mileage: Only 56k, slightly negotiable. Body: Agency condition Engines: Agency condition Additions: Full Max Power cat-back exhaust Full car PPF Profender shocks and control arms Original Method rims Stones tires Equipped with front spotlights External tow hitch connection with plug Ready water tank connection Bed light switch Mirror spotlight switch Hidden lights on the tires American bed cover Selling to the highest bidder.