When you want to go off-road, uptown-style, GMC supports that vision with a rugged line of trucks and SUVs packaged under the AT4 label, or All-Terrain 4WD. These mighty vehicles are off-road ...
While the GMC Sierra AT4 and AT4X offer plenty of off-road prowess right from the factory, PaxPower's upgrades elevate the ...
For 2023, an AT4X AEV Edition joined the lineup, adding extreme off-road capabilities. We’ve driven the updated Sierra 1500, ...