2021 GMC Sierra 1500 AT4

The 2021 Sierra 1500 is GMC's full-size pickup, offered in work-oriented and luxury trims that range from the Elevation to the Denali. It lines up against the Ford F-150, Ram 1500, and Chevrolet Silverado 1500, with the Denali aiming at the luxury end of the segment. The Sierra drives with a composed, planted feel, and the steering is precise for a truck of this size. The cabin is roomy and well built, and the available MultiPro tailgate adds useful versatility for loading and reaching the bed. The AT4 is the off-road-ready Sierra, with a factory 2-inch lift, red recovery hooks, and skid plates that the SLT and Denali don't get. The off-road suspension and auto-locking rear diff make it genuinely capable on trails, but the ride is firmer than a standard Sierra's on pavement.