Z71 2012 Automatic Gasoline mileage: 300 KM or more 4WD For sale: Sierra 2012, extended cab. Mileage: 319, negotiable. 4WD. Newly inspected. The transmission was overhauled 3 years ago and is in good condition. Airbags and chassis are intact ✅ Has HD mirrors. Has a sporty thermostat that opens at 71. The body has been completely repainted. The interior has been completely reupholstered in black and beige. It has minor imperfections. It has a distinctive license plate (1001). This vehicle is a great find for a buyer. Serious buyers only, and I won't disappoint a serious buyer.