The 2025 Mercedes-Benz GLS 450 4MATIC SUV stands as a beacon of luxury and performance in the full-size SUV segment. With a starting MSRP of $89,200, this vehicle combines robust power, sophisticated technology, and opulent comfort to cater to discerning drivers and families alike. As a flagship SUV in the Mercedes-Benz lineup, the GLS 450 is engineered to deliver an unparalleled driving experience, whether navigating city streets or embarking on long journeys.
Under the hood, the GLS 450 boasts a potent 3.0L inline-6 turbo engine with mild hybrid drive, producing 375 horsepower and 369 lb-ft of torque. This powertrain ensures brisk acceleration, propelling the SUV from 0 to 60 mph in just 5.8 seconds. The seamless integration of the mild hybrid system enhances fuel efficiency and responsiveness, making it both powerful and refined. Paired with a 9G-TRONIC 9-speed automatic transmission and the 4MATIC fully variable all-wheel-drive system, the GLS 450 offers confident handling and control in diverse driving conditions.
Dimensions and Capacity: Space Without Compromise
The GLS 450 is generously proportioned, ensuring ample space for passengers and cargo. It comfortably seats seven passengers as standard, with an optional six-seat configuration available for those seeking even more individualized second-row comfort. The vehicle dimensions reflect its spacious interior:
- Wheelbase (A): 123.4 inches
- Overall Length (B): 205.0 inches
- Overall Height (C): 71.8 inches
- Overall Width with mirrors (D): 84.9 inches
- Overall Width without mirrors (E): 79.9 inches
- Track Width, front (F): 65.7 inches
- Track Width, rear (G): 66.6 inches
- Curb Weight: 5,545 lbs
These dimensions translate to a cavernous interior, offering substantial headroom and legroom in all three rows. First-row occupants enjoy 39.4 inches of headroom and 40.3 inches of legroom, while second-row passengers are treated to 40.2 inches of headroom and an impressive 41.9 inches of legroom. The third row, often a compromise in SUVs, still provides a respectable 34.6 inches of legroom. Cargo capacity ranges from 17.4 cu ft behind the third row to a maximum of 84.7 cu ft with the second and third rows folded, making it exceptionally versatile for both daily errands and family vacations.
Performance and Fuel Efficiency: A Balanced Approach
The GLS 450’s 3.0L inline-6 turbo engine is not just powerful but also designed for efficiency. It achieves 19 mpg in the city and 24 mpg on the highway, respectable figures for a vehicle of its size and capability. Key engine specifications include:
- Engine: 3.0L inline-6 turbo with mild hybrid drive
- Power: 375 hp @ 5,500-6,100 rpm
- Torque: 369 lb-ft @ 1,600-4,500 rpm
- Compression Ratio: 10.5:1
- Fuel Requirement: Premium unleaded gasoline
- Fuel Capacity: 23.8 gal
The 9G-TRONIC 9-speed automatic transmission ensures smooth and responsive gear changes, optimizing both performance and fuel economy. The 4MATIC all-wheel-drive system provides enhanced traction and stability, making the GLS 450 a confident performer in various weather conditions.
Chassis and Handling: Engineered for Comfort and Control
The GLS 450’s chassis is designed to provide a comfortable and controlled ride. It features a 4-wheel independent suspension with double-wishbone front and multi-link rear, complemented by self-leveling AIRMATIC air suspension and Adaptive Damping System (ADS). This advanced suspension system automatically adjusts to road conditions and driving style, delivering a smooth and composed ride, even on uneven surfaces.
- Suspension: 4-wheel independent double-wishbone front/multilink rear with self-leveling AIRMATIC® and Adaptive Damping System (ADS)
- Steering Type: Rack-and-pinion with electromechanical power assist
- Turning Circle: 41.0 ft
The steering is precise and responsive, offering excellent feedback and making the GLS 450 surprisingly agile for its size. The 41.0-foot turning circle is commendable for a large SUV, enhancing maneuverability in urban environments.
Wheels and Tires: Style and Performance
The standard wheels are 21-inch triple 5-spoke designs, with staggered widths of 10.0 inches at the front and 11.0 inches at the rear. They are fitted with all-season tires, sized 275/45R21 for the front and 315/40R21 for the rear. These wheel and tire combinations not only enhance the vehicle’s aesthetics but also contribute to its confident handling and grip.
- Wheels: 21-inch triple 5-spoke (10.0×21 front and 11.0×21 rear)
- Tires: 275/45R21 front and 315/40R21 rear, all-season
Optional Packages: Tailor Your GLS 450
Mercedes-Benz offers a range of optional packages to personalize the GLS 450 and elevate its luxury and sporty appeal:
- AMG Line: ($3,250) Enhances the sporty aesthetics with AMG body styling, 21-inch AMG twin 5-spoke wheels, sport brake system, brushed stainless steel pedals, AMG floor mats, and a sport steering wheel.
- Night Package: ($400) Adds gloss black exterior accents and 21-inch AMG twin 5-spoke wheels with black accents for a more aggressive look.
- Executive Rear Seat Package PLUS: ($3,450) Transforms the second row into a haven of luxury with heated and ventilated seats, multicontour seats with massage, luxury head restraints, wireless charging, MBUX tablet, and side-impact airbags.
- Exclusive Trim: ($1,750) Focuses on front and second-row comfort with heated second-row seats, multicontour front seats with massage, and rapid heating for front seats.
- Pinnacle Trim: ($3,550) Includes all features of the Exclusive Trim, plus Air Balance cabin-air purification and fragrance systems, heated and cooled front cupholders, Head-Up Display, MBUX Interior Assistant, Mercedes Star Pattern logo projectors, and multicontour front seats with massage.
- Warmth & Comfort Package: ($1,100) Adds heated front and second-row armrests for enhanced comfort in colder climates.
Maintenance, Warranty, and Service: Peace of Mind Ownership
Mercedes-Benz provides comprehensive support for GLS 450 owners, including prepaid maintenance plans, extensive warranty options, and access to certified service and repair centers.
- Prepaid Maintenance: Offers cost savings and peace of mind by locking in future maintenance costs at today’s prices.
- Mercedes-Benz Warranties: A variety of warranty options are available, including the standard 48-month/50,000 mile New-Vehicle Limited Warranty.
- Service and Repair: Access to factory-trained technicians, advanced diagnostic tools, and Genuine Mercedes-Benz Parts at Mercedes-Benz dealerships and certified collision centers.
Conclusion: The GLS 450 – A Leader in Luxury SUVs
The 2025 Mercedes-Benz GLS 450 4MATIC SUV is a compelling choice for those seeking a luxurious, spacious, and powerful SUV. Its blend of performance, comfort, advanced technology, and versatile practicality sets it apart in its class. Whether you prioritize family comfort, dynamic driving, or cutting-edge features, the GLS 450 delivers on all fronts, making it a true leader in the luxury SUV segment. Explore the GLS 450 and experience the pinnacle of automotive excellence.
