XL 2018 Used Automatic Gasoline mileage: 400 KM or more Peace be upon you. I am offering my GMC Yukon XL car. Mileage: 400,000 km, and it may increase. Specifications: Radar, lane keeping assist, automatic braking, rear sensors, screen, rear camera, electronic tailgate, folding mirrors. The car has been fully upholstered, and the original seats and floor are almost new, with no issues. An external transmission cooler has been installed for increased cooling. And the car has no problems, praise be to God.