SLT 2007 Automatic Gasoline mileage: 300 KM or more For sale: GMC Yukon, model 2007. Gearbox, Engine, Air conditioning, Chassis, All are in excellent condition. Body has been repainted. There are general minor scratches on the car. The car was purchased with 520,000 km and I've driven it 16,000 km in a year. I drive the car once a week. Everything in it is fine.