This 2023 GMC Sierra 1500 AT4 Crew Cab model has roughly 5,000 miles on the clock and features a Summit White exterior as well as SCA Performance’s famous Black Widow package.

Its trucks share many features, powertrains, and more, but in this article, we compare GMC's AT4 vs. Trail Boss trims from ...

The grille design on the Sierra AT4 is the same as the one on the SLT (see our guide on all 2025 GMC Sierra grilles) but with a black chrome finish and a gloss black header on the AT4. A blackout ...

Lifted 2025 GMC Sierra HD AT4, Still Keeps In Touch With Its Fancy Side Via Black Vossens Published: 7 Mar 2025, 12:50 UTC • By: Aurel Niculescu 8 photos ...

Sandwiched between the Elevation and the Denali is the 2026 GMC Sierra EV AT4—the dedicated off-roader of the group. It features rugged styling, a red illuminated GMC badge on the front, two extra ...