2026 Gasoline mileage: 27 KM AT4 2026 Automatic transmission Gasoline 4x4 Mileage 27 thousand Number of owners (first owner), agency, from our hands Additions: Full PPF on the car and insulating tint GMC AT4 Specifications __ 8-cylinder 5.3 CC engine Leather Seat cooling 20-inch rims Electric control seats Navigation screen Cruise control Electric windows Projector 10-speed automatic transmission Bluetooth Keyless start Wireless charger Rear camera Front and rear sensors Anti-slip Steering wheel control Electric mirror folding 18-inch rims Smart entry Smart start Auto-dimming mirror New GMC Sierra 2026 for sale Automatic transmission Gasoline