GMC Sierra 2015 Used mileage: 268 KM For sale GMC Sierra 2015, full option. Mileage: 268k. Engine and transmission are guaranteed, praise be to God. Body is original, praise be to God. There is a modification without paint, shown in the pictures. The car is in agency condition, no modifications or programming. Equipped with a tray, water tank, side drawers with a fridge seat. Registration and inspection are new.