2026 GMC Terrain AT4: Key Features, Specs, and Buying Guide

The 2026 GMC Acadia has been completely reimagined with a larger, more commanding footprint that bridges the gap between mid-size maneuverability and full-size capability. The Acadia is now significantly longer, wider, and taller than previous generations, offering a presence that dominates the road. Whether you are fitting it into your garage or loading it up for a weekend, knowing the exact measurements of this three-row SUV is essential. From its best-in-class front legroom to its massive expansion in cargo capacity, here is a comprehensive look at the 2026 GMC Acadia dimensions. Exterior Dimensions The most striking update for the 2026 model year is the Acadia’s increased scale. By extending the wheelbase and widening the stance, GMC has created an SUV that offers superior stability and a much more spacious interior environment. Wheelbase: 120.9 inches Overall Length: 204.0 inches Width (without mirrors): 79.6 inches (up to 80.0" on AT4) Height: 71.0 inches (Elevation) / 72.0 inches (AT4) / 71.4 inches (Denali) Front/Rear Track Width: 67.6 / 67.4 inches Ground Clearance: Varies by trim (Elevation: 6.8", Denali: 7.3", AT4: 7.8") These dimensions make the 2026 Acadia one of the largest vehicles in the mid-size segment, providing a substantial look that rivals many full-size competitors while remaining manageable for suburban driving. Interior Dimensions & Passenger Space Inside the cabin, the 2026 Acadia offers a comfortable interior with plenty of space. Depending on your chosen configuration, it seats 7 or 8 passengers comfortably. The increased length of the vehicle has allowed for more room in the third row, meaning adults can finally sit in the back without compromise. Total Passenger Volume: 143.8 cubic feet Headroom (1st/2nd/3rd Row): 42.6 / 40.0 / 38.2 inches Legroom (1st/2nd/3rd Row): 44.3 / 41.5 / 32.1 inches Shoulder Room (1st/2nd/3rd Row): 62.0 / 62.0 / 58.0 inches Hip Room (1st/2nd/3rd Row): 59.2 / 58.4 / 48.6 inches With over 44 inches of front legroom and a third row that offers nearly 3 inches more legroom than the previous generation, the Acadia ensures every passenger enjoys a first-class experience. Cargo Capacity The 2026 Acadia’s cargo capacity was built for the seats to be up or down, the cargo area is designed to accommodate everything from grocery runs to full-scale camping gear. The One-Touch Folding Seats and Smart Slide second row make transitioning from passenger mode to cargo mode effortless. Cargo Volume (Behind 3rd Row): 23.0 cubic feet Cargo Volume (Behind 2nd Row): 57.3 cubic feet Max Cargo Volume (Seats Folded): 97.5 cubic feet Under-Floor Storage: Includes a hidden cargo area beneath the rear floor to secure smaller valuables and tools. Find Your Next 2026 GMC Acadia at Cable Dahmer Buick GMC of Kansas City Selecting the right 2026 GMC Acadia is about more than just picking a color; it’s about choosing a vehicle that fits the physical demands of your daily life. From the trail-ready AT4 with its extra ground clearance to the ultra-premium Denali Ultimate, the Acadia is engineered to maximize every inch of its redesigned frame. Shop GMC Acadia

The 2026 GMC Sierra 1500 remains the standard-bearer for pickups. While it shares its DNA with the hardest-working trucks on the road, the Sierra distinguishes itself with a level of refinement, sophisticated styling, and advanced technology that its competitors simply can’t match. For 2026, the Sierra 1500 offers a diverse lineup that ranges from high-utility work trucks to off-road legends and high-end cabins put into a pickup. Here is the breakdown of the 2026 GMC Sierra 1500 trim levels. Pro The Pro trim is the foundation of the Sierra lineup, built for those who need a dependable, no-nonsense truck that still carries the premium GMC presence. It is a high-utility vehicle that focuses on getting the job done efficiently. TurboMax™ Engine: Delivers a class-leading 430 lb-ft of standard torque for impressive towing right out of the gate. LED Headlamps & Taillamps: Standard signature C-shaped lighting provides superior visibility and a modern look. GMC Pro Safety: A comprehensive suite of safety tech, including Forward Collision Alert and Front Pedestrian Braking. CornerStep Rear Bumper: Functional design for easy, stable access to the truck bed. 7-inch Color Touchscreen: Includes standard wireless connectivity for Apple CarPlay® and Android Auto™. SLE The SLE takes the utility of the Pro and adds a significant layer of comfort and upgraded technology, making it an ideal choice for the modern daily driver. 13.4-inch Infotainment Display: A massive, high-definition screen with Google built-in compatibility for seamless navigation and media. 12.3-inch Driver Information Center: A fully digital, customizable instrument cluster that puts vital stats right in your line of sight. Chrome Exterior Trim: Adds a polished look to the front grille, bumpers, and mirror caps. 10-Way Power Driver Seat: Includes power lumbar support to ensure comfort during long Missouri commutes. MultiPro™ Tailgate: The world's first six-function tailgate, providing unmatched flexibility for loading and unloading. Elevation The Elevation trim is designed for those who prefer a bold, monochromatic aesthetic. It trades chrome for high-gloss black accents and is a favorite for drivers who want a sporty, custom-truck look. Monochromatic Exterior: Features a body-color grille surround, bumpers, and door handles for a sleek, uniform appearance. 20-inch Gloss-Black Wheels: Large, aggressive wheels that perfectly complement the blacked-out trim. High-Capacity Suspension: Provides a more confident ride and enhanced handling on various road surfaces. LED Fog Lamps: Standard high-output lamps to improve visibility in heavy Kansas City mist or rain. Remote Vehicle Starter System: Start your truck from your phone or fob to pre-condition the cabin before you head out. SLT The SLT is the gateway to luxury. It emphasizes premium materials and advanced trailering technology, making it the perfect choice for those who frequently tow boats or campers. 5.3L EcoTec3 V8 Engine: Standard V8 power providing 355 hp and 383 lb-ft of torque for effortless cruising. ProGrade™ Trailering System: Includes an in-vehicle trailering app with pre-departure checklists and trailer light testing. Perforated Leather-Appointed Seating: Adds a high-end feel to the cabin with standard heating in the front seats. Rainsense Wipers: Automatically activate and adjust their speed based on the intensity of the precipitation. Available 20-inch Polished Aluminum Wheels: Adds a brilliant, high-end finish to the truck’s exterior profile. AT4 The AT4 is a purpose-built off-road machine that doesn't sacrifice premium comfort. It is designed for enthusiasts who want to tackle the trails on Saturday and drive to the office on Monday. 2-inch Factory Lift: Provides increased ground clearance and a commanding stance for off-road obstacles. Rancho® Monotube Shocks: Off-road-tuned suspension designed to handle rough terrain while maintaining on-road composure. 2-Speed Autotrac® Transfer Case: Features a dedicated 4-Low mode and a specialized Terrain Mode for technical crawling. Skid Plates: Heavy-duty protection for the front underbody, oil pan, and transfer case. Jet Black Interior with Kalahari Accents: An exclusive AT4 aesthetic featuring premium materials and rugged design touches. AT4X For those who demand the absolute peak of off-road performance, the AT4X takes capability to the extreme with competition-ready hardware and a ultra-luxurious cabin. Multimatic DSSV™ Dampers: Revolutionary spool-valve dampers that provide unparalleled control in extreme off-road conditions. Front & Rear E-Locking Differentials: Provides maximum traction by locking the wheels together for the most challenging climbs. 33-inch Goodyear Wrangler Territory MT Tires: Mounted on exclusive 18-inch forged aluminum wheels. AEV Stamped Steel Bumpers: Provides superior protection and improved approach angles for high-clearance off-roading. Obsidian Rush Interior: Features full-grain leather, authentic Vanta ash wood trim, and massaging front seats. Denali The Denali name is synonymous with the pinnacle of truck luxury. It is the most recognizable luxury pickup in the world, defined by its signature chrome grille and first-class cabin. Signature Denali Chrome Grille: An unmistakable, brilliant mesh grille that defines the luxury truck segment. Authentic Open-Pore Wood: Complemented by brushed aluminum accents and premium Forge leather seating. Continuous Damping Adaptive Ride Control: Monitors the road every two milliseconds to provide a smooth, cloud-like ride. 15-inch Head-Up Display: Projects key information directly onto the windshield to keep your focus on the road. Bose® Premium Series Sound System: A 7-speaker system with a Richbass® woofer for a studio-quality audio experience. Denali Ultimate If luxury isn't enough, the Denali Ultimate is the most advanced and luxurious Sierra ever built. It includes every premium feature GMC offers as standard equipment. Super Cruise™ Hands-Free Driving: The industry’s first true hands-free driver assistance technology, now compatible with trailering. Vader Chrome Accents: A unique, dark-mirrored chrome finish exclusive to the Denali Ultimate. 22-inch Ultra-Bright Machined Wheels: Large, stunning wheels with bright chrome and high-gloss black accents. 16-Way Power Massaging Seats: Featuring full-grain leather and topographical maps of Mt. Denali laser-etched into the wood trim. Standard 6.2L V8 or Duramax Diesel: Choice of the two most powerful and refined engines in the GMC lineup at no extra cost. Find Your Next GMC Sierra 1500 at Cable Dahmer Buick GMC of Kansas City Selecting the right 2026 GMC Sierra 1500 is about finding the vehicle that matches the high standards of your lifestyle. From the trail-conquering AT4X to the executive luxury of the Denali Ultimate, GMC has engineered a truck that truly stands alone. Find out why the Sierra 1500 continues to lead the way. Shop GMC Sierra 1500

The 2026 GMC Sierra 1500 AT4 is engineered as a purpose built pickup that bridges the gap between everyday functional utility and rugged off-road performance. This trim level is specifically designed for drivers who require a vehicle capable of navigating challenging terrain while maintaining a high standard of interior luxury and advanced technology. Unlike standard light duty trucks that may require aftermarket modifications for trail use, the AT4 arrives from the factory with a comprehensive suite of integrated mechanical upgrades. Powertrain and Performance Specifications The 2026 AT4 is distinctive for its high-torque standard powertrain and the availability of a legendary V8 option. Both engines are paired with a 10-speed automatic transmission to maximize power delivery across varied terrain. Standard: 3.0L Duramax® Turbo-Diesel I6 For the 2026 model year, the 3.0L Duramax remains the standard engine for the AT4 trim. Horsepower: 305 hp. Torque: 495 lb-ft. Efficiency: This engine is engineered for both low-end torque and highway efficiency for long-distance travel. Max Towing: Up to 13,300 lbs in certain configurations. Available: 6.2L EcoTec3 V8 For drivers prioritizing raw horsepower and traditional V8 sound, the 6.2L V8 is available as an upgrade. Horsepower: 420 hp. Torque: 460 lb-ft. Towing Capability: Maximum towing reaches 13,100 lbs with the 6.2L V8. Dedicated Off-Road Performance Hardware The AT4 designation signifies a vehicle that is mechanically prepared for off-pavement use through several key hardware integrations. Factory-Installed 2-Inch Suspension Lift: Every AT4 comes with a standard 2-inch lift directly from the factory, which increases overall ground clearance to approximately 11.1 inches. Rancho Monotube Shocks: The off-road suspension is tuned with Rancho monotube shocks designed to absorb significant impacts on rough trails while preserving ride quality on paved roads. Two-Speed Autotrac Transfer Case: This system includes a 4WD LO setting for maximum low speed traction and a dedicated Terrain Mode for specialized off-road control. Automatic Locking Rear Differential: This component ensures that both rear wheels turn at the same speed when slip is detected, providing critical grip in mud, sand, or snow. Underbody Skid Plates: Heavy duty plates are installed to protect the front underbody, oil pan, differential case, and transfer case from rocks and debris. Hill Descent Control: This technology uses the antilock braking system to provide a smooth and controlled descent on steep grades without the driver needing to apply the brake pedal. Exterior Styling and Functional Design The exterior of the 2026 Sierra 1500 AT4 balances aesthetic distinction with functional features that support its off-road mission. Red Recovery Hooks: Standard vertical recovery hooks finished in red provide a clear visual identity for the trim and offer functional points for vehicle recovery. Black Chrome Accents: The trim features unique black chrome finishes on the grille and other exterior elements to create a more aggressive appearance. 20-Inch Wheels and Tires: The AT4 rides on 20-inch machined aluminum wheels with Carbon Grey accents, wrapped in all-terrain tires for versatile performance. GMC MultiPro Tailgate: This six-function tailgate is standard, allowing it to serve as a step, a load stop, or even a standing workspace. High-Strength Steel Bed: The pickup bed is constructed from roll-formed high-strength steel to resist dents and punctures from heavy cargo. Interior Comfort and Premium Craftsmanship Despite its rugged exterior, the interior of the 2026 AT4 is designed as a luxury environment with exclusive trim specific materials. Exclusive Color Palette: The cabin features a Jet Black interior with Kalahari accents and unique AT4 badging. Perforated Leather Seating: Standard seating includes heated and ventilated perforated leather front bucket seats for year round comfort. Heated Steering Wheel: A leather wrapped heated steering wheel provides added comfort in cold weather conditions. Premium Floor Liners: Every AT4 is equipped with all weather floor liners that feature carpeted inserts to help protect the cabin from mud and moisture. Spacious Cabin: The Sierra 1500 offers best in class crew cab front head and legroom to accommodate drivers of all sizes. Advanced Infotainment and Driver Focused Technology The 2026 AT4 is equipped with a sophisticated digital cockpit that provides over 40 inches of total diagonal display area. 13.4-Inch Diagonal Infotainment System: A large multicolor touchscreen serves as the primary hub for navigation, media, and vehicle settings. Google Built-In Compatibility: This system integrates Google Maps, Google Assistant, and the Google Play Store directly into the vehicle’s interface. 12.3-Inch Digital Driver Information Center: This customizable cluster allows the driver to view critical data such as speed, fuel levels, and off-road inclinometers. Bose Premium Audio System: A 7-speaker Bose system with a Richbass subwoofer provides high fidelity sound throughout the cabin. Wireless Connectivity: Standard features include wireless Apple CarPlay and Android Auto for seamless smartphone integration. Trailering and Utility Features The AT4 is a capable towing machine, supported by numerous technologies designed to make hauling safer and more intuitive. Maximum Towing Capacity: When equipped with the 3.0L Duramax Turbo-Diesel, the AT4 can tow up to 13,300 lbs in certain configurations. ProGrade Trailering System: This available suite includes an in-vehicle trailering app with maintenance reminders and a trailer light test feature. In-Vehicle Trailering App: Drivers can access integrated towing checklists and monitor trailer tire pressure directly from the infotainment screen. Trailer Side Blind Zone Alert: This safety feature extends the vehicle's blind spot monitoring to the full length of the trailer to assist with lane changes. Find Your Next 2026 GMC Sierra 1500 AT4 at Cable Dahmer Buick GMC of Kansas City The 2026 GMC Sierra 1500 AT4 stands as a definitive choice for those seeking a truck that is as capable on the trail as it is refined on the road. With its robust off-road hardware, sophisticated powertrain options, and high-end interior technology, this pickup is engineered to elevate every adventure. If you are looking for a vehicle that seamlessly blends professional-grade strength with premium luxury, the 2026 Sierra 1500 AT4 is ready to meet your demands. 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