GMC Sierra 2015 Automatic mileage: 260 KM Peace be upon you and God's mercy and blessings be upon you. For sale: GMC Denali fully loaded, model 2015. The vehicle has driven 260 before the increase. The engines are in perfect condition, the body is in perfect condition; in short, it is like new and well maintained by the owner. It is the buyer's responsibility to find it.