GMC Sierra AT4 2020 Automatic Gasoline 4WD Peace, mercy, and blessings of God be upon you. There is a Sierra model 2020 for sale. Praise be to God, I got it after an old man's use, he didn't drive it much, less than four months ago. The only defect is the bumper shown in the pictures, which caused the steering wheel airbag to deploy. Other than that, the car has not been significantly affected. The mileage is less than 80,000, and the asking price is 120,000. We will not disagree with a serious buyer, God willing.