2026 GMC Yukon XL AT4 Ultimate

The 2026 Yukon XL is GMC's largest SUV, a three-row full-size that prioritizes passenger space and towing capability for big families. It goes head-to-head with the Chevrolet Suburban, Ford Expedition Max, and Jeep Wagoneer L in the extended-length SUV segment. The Yukon XL feels substantial on the road, with confident straight-line stability and a commanding view over traffic. The ride is generally composed for a vehicle this size, though the independent rear suspension helps smooth out rough pavement. Inside, the cabin offers generous space for eight, with a cavernous cargo area behind the third row and upscale materials on higher trims. Choosing the AT4 Ultimate over the Denali brings the off-road-focused chassis with the red recovery hooks, a high approach front fascia, and standard all-terrain tires instead of street rubber. The 6.2L V8 makes 420 horsepower and 460 lb-ft of torque, routed through the ten-speed automatic and four-wheel drive, and the EPA rates it at 16 mpg combined with that extra off-road hardware. It also gets Magnetic Ride Control and the four-corner Air Ride Adaptive Suspension, giving you a controlled highway cruise and genuine trail clearance in the same SUV.