Review: The 2022 GMC Sierra 1500 AT4X is an extreme machine
The GMC Sierra 1500 lineup has been updated for mid-2022 with fresh styling and a more refined interior, but that’s not the exciting news. The full-size pickup is now available in a crew cab, short bed AT4X model that promisees the most extreme off-road capability of any Sierra 1500. It’s a mechanical twin to the…