GMC Sierra 2020 mileage: 77 KM 4WD GMC Sierra 2020 AT4 Full Option. Distinctive color: blue. Mileage: 77 thousand, real mileage and guaranteed. Engines: guaranteed, praise be to God. Body: guaranteed, praise be to God, except for a light modification, pictured, no bigger than a palm. The car is guaranteed, and the license plate is excluded from the sale. Whoever is interested in the plate, we can negotiate. The car is for sale by offer, I have no set price. Only serious buyers should contact me. May God bless us and you.