GMC Sierra 2015 Used Automatic Gasoline mileage: 290 KM Peace, mercy, and blessings of God be upon you. GMC Sierra 2015. Mileage 290, clear in the pictures. Body and engine guaranteed. The price is set. Please do not bid. The price is set. May God grant us all sustenance. If you are interested in the price, otherwise there are many cars, it is not a must for me to sell my car.