GMC Sierra Z71 2016 Used Automatic Gasoline mileage: 300 KM or more 4WD Peace, mercy, and blessings of God be upon you. I am announcing the GMC Sierra, model 2016, double z71, with its known features. It has Profender shocks. The vehicle has no issues, praise be to God. There are some notes clarified below in the inspection. The registration and inspection are new. And the inspection is the best proof.