The 2027 GMC Yukon XL AT4 Ultimate 4WD features a striking Summit White exterior paired with an Obsidian Rush interior accented in red, highlighted by luxurious full-grain leather seats. Powered by a robust 6.2L V8 Ecotec3 engine delivering 420 horsepower, this model offers impressive capability and refined performance, enhanced by variable valve control and cylinder deactivation for optimized efficiency. This Yukon XL AT4 Ultimate is equipped with advanced driver assistance and convenience technologies, including Super Cruise for hands-free driving on compatible highways and Blind Zone Steering Assist with Trailering to enhance safety during towing. A 15-inch diagonal multi-color head-up display provides key information right in your line of sight, improving situational awareness without distraction. Comfort is prioritized with perforated heated and ventilated front seats, heated rear seats, and a dual-pane panoramic power sunroof that elevates the cabin ambiance. The AutoSense hands-free power liftgate adds convenience for loading and unloading cargo, while the 2-speed electronic Autotrac active transfer case ensures confident handling in various driving conditions. The driver's seat includes two-way power upper shoulder adjustments for added support during long drives. This Yukon XL blends premium features, powerful performance, and thoughtful technology within a commanding and spacious 4WD package.