GMC Sierra AT4 2025 Automatic Gasoline mileage: 52 KM 4WD Sierra AT4 2025 has a corner impact as shown in the pictures. Airbags are intact, as are the shock absorbers and the car's undercarriage. The damage is external only: bumper, fender, headlight, and edge of the hood. All maintenance has been done at the agency, and the interior is clean. It has KMC rims and Haman Shahin tires, worth 5000.