Which Mercedes-Benz GLS Trim Is Right for You? GLS 450 vs GLS 580 vs AMG® GLS 63

• The 2026 Mercedes Benz GLS SUV lineup begins with the 2026 Mercedes Benz GLS 450 (375 hp), followed by the powerful 2026 Mercedes Benz GLS 580 (510 hp) adding premium features like 5 zone climate control and multicontour massage front seats, followed lastly by the 2026 Mercedes Benz GLS 63 AMG® that features handcrafted AMG® 4.0L V8 biturbo engine with hybrid assist (603 hp).
• All 2026 Mercedes Benz GLS SUV models feature standard 7-passenger seating, 4MATIC® fully variable all wheel drive, and an adaptive AIRMATIC® suspension system with key standard technologies included: 12.3-inch displays, wireless phone charging with Apple CarPlay and Android Auto, and Burmester surround sound system.
• Drivers can schedule a test drive or buy the new 2026 Mercedes Benz GLS SUV for sale in Fort Walton Beach, FL at Mercedes-Benz of Fort Walton Beach.

Also Read: The 2026 Mercedes-Benz C-Class Sedan: Luxury for Everyday Living

The 2026 Mercedes Benz GLS SUV line stands out in the luxury SUV market with its perfect blend of comfort, elegance, and advanced safety features. Known as the “S-Class of SUVs,” the GLS redefines what a full-size, three-row vehicle can achieve.

As the flagship SUV from the automaker, the Mercedes Benz GLS 2026 is meticulously engineered to provide an unparalleled driving experience with its three models: GLS 450 4MATIC® SUV, GLS 580 4MATIC® SUV, and AMG® GLS 63 SUV. Know what each trim level can offer for your comfort, preferences, and lifestyle needs in Fort Walton Beach. You can also shop GLS trims in our current inventory.

Mercedes-Benz GLS Trims Side by Side

Starting MSRPs and specifications as listed by Mercedes-Benz USA in October 2026 (2027 GLS 450 and GLS 580; 2026 Mercedes-Maybach GLS 600). MSRP excludes destination, taxes, title, and fees; figures vary by configuration. The sections below describe the 2026 GLS. Confirm details for a specific vehicle with our team.

Which GLS Trim Should You Choose?

Start with the GLS 450. It already has the things that make a GLS a GLS: three real rows, a smooth six-cylinder with plenty of power for highway merging and towing the boat, and a ride that soaks up long drives. Choose the GLS 580 if you want effortless V8 performance and more standard luxury, especially for passengers in the back. The AMG® GLS 63 is for drivers who want sports-car acceleration in a three-row SUV, and the Mercedes-Maybach GLS 600 is for buyers who want the most luxurious rear seats Mercedes-Benz offers in an SUV.

Deciding between sizes? Compare the GLE vs GLS, see the full Mercedes-Benz SUV lineup, or read our GLC vs GLE comparison.

The 2026 Mercedes-Benz GLS SUV: An Overview

“Luxury beyond compare” is how the 2026 Mercedes Benz SUV GLS can be best described. Carrying with it the prestigious S-Class pedigree, you can expect everything you need in Mercedes’ luxury sedan: top-tier refinement, comfort, and cutting-edge technology.

There are several notable updates to the 2026 Mercedes-Benz GLS redesign compared to the 2025 model. Its exterior gets a bold, sporty stance with its redesigned front and rear bumpers, large illuminated grille, and reshaped LED headlights.

Performance gets a boost in the 2026 GLS with its enhanced powertrain. Not only can it produce more horsepower, but it also has a refined air suspension for a smoother ride. Its e-Active Body Control uses a 48-volt electrical architecture to scan the road ahead and adjust its suspension in real-time.

Interior-wise, the 2026 GLS gets a spacious 7-seater cabin, but also a futuristic and luxurious vibe with the latest MBUX technology, power-adjustable second- and third-row seating, and quilted Nappa leather upholstery.

Safety is also paramount in this luxury SUV with its suite of advanced safety and driver-assistance features. Apart from its PRESAFE® system and DISTRONIC® cruise control, the vehicle also comes with Active Steering Assist, Active Lane Change Assist, and a “transparent hood” display for easier navigation across challenging terrain.

All these improvements make the GLS 2026 SUV a meaningfully redesigned vehicle that raises the bar in luxury, technology, and comfort. But what does each of the Mercedes Benz GLS trim levels have to offer?

2026 Mercedes Benz GLS 450: The Balanced Luxury Option

The 2026 Mercedes Benz GLS 450 is the entry point into the GLS family, capable of delivering strong power and deep luxury. This trim is ideal for families who expect luxury but need the efficiency and dependability of an SUV.

Powered by a 3.0L inline 6 turbo engine featuring a mild hybrid drive system, the Mercedes Benz GLS 450 4MATIC® SUV can generate 375 horsepower and 369 lb-ft of torque, allowing it to accelerate from 0 to 60 mph in just 5.8 seconds. Its mild hybrid element enhances both its responsiveness and efficiency.

Power management is handled by a 9G TRONIC 9-speed automatic transmission and the 4MATIC® fully variable All Wheel Drive. Paired with the AIRMATIC® Suspension, the SUV can automatically adjust to the weight and driving conditions, making highway driving smoother.

Other key features you can find in the 2026 GLS 450 include:

• Nappa leather multifunction steering wheel
• Side-mirror logo projectors
• 7-seater cabin (6 optional)
• One-touch “Carwash mode”
• OFFROAD menu and “Transparent Hood” display
• Car-to-X Communication
• HANDS-FREE ACCESS
• Power, multi-contour with memory and massage, rapid heating front seats
• Heated second rows
• 4-zone automatic climate control
• Panorama roof
• 64-color LED ambient lighting
• Power-folding 50/50-split third row seats
• 12.3-inch touchscreen and digital instrument cluster displays
• Voice Control with Natural Language Understanding
• 21-inch 5-spoke wheels fitted with all-season tires

2026 Mercedes Benz GLS 580: Power and Elegance in One

Stepping up in performance and luxury, the 2026 Mercedes Benz GLS 580 is for drivers who prioritize power and passenger comfort thanks to its significant amenity and engine dynamic upgrades.

With its 4.0L V8 biturbo engine with mild hybrid drive, the GLS 580 can produce 510 horsepower and 538 lb-ft of peak torque. The hybrid assist component can contribute up to 21 hp electrically for a more commanding response, leading to an acceleration of 60 mph in just 4.7 seconds. It still retains the 9G TRONIC 9-speed automatic transmission and 4MATIC® fully variable All Wheel Drive.

Drivers and passengers alike can expect full comfort with each ride. Front seats come with multicontour and massage features (hot-stone and active workout options included). A 5-zone automatic climate control includes a fifth zone and ceiling-integrated air controls for third-row passengers, ensuring everyone stays cool in the Florida heat.

Safety-wise, it has an Active Distance Assist DISTRONIC, a radar-based cruise control system that adapts your set speed in response to traffic flow. It can even bring the vehicle to a full stop if the vehicle ahead stops, reducing driver fatigue in stop-and-go traffic.

Other key features in the 2026 GLS 580 include:

• All items from the 2026 GLS 450, plus
• Air Balance cabin air purification and fragrance system
• Head-Up Display
• 5-zone automatic climate control
• Heated and cooled front cupholders
• MBUX Interior Assistant
• ATTENTION ASSIST®
• Exit Warning Assist
• Available Burmester High-End 3D Surround Sound System
• Available 2nd-row wireless charging, 2nd-row MBUX tablet, wireless headsets
• 22-inch AMG® multispoke wheels
• AMG® body styling

2026 Mercedes Benz GLS 63 AMG®: High-Performance Luxury

For the driver who needs the maximum possible power in a luxury utility vehicle, the 2026 Mercedes Benz GLS 63 AMG® is the definitive choice. This GLS model provides the “soul of a racecar” combined with three-row functionality.

The AMG® GLS 63 SUV has a handcrafted AMG® 4.0L V8 biturbo engine with hybrid assist, generating 603 horsepower and 627 lb ft of torque. The acceleration is supercar quick, achieving 0 to 60 mph in just 4.1 seconds with its AMG® SPEEDSHIFT® TCT 9-speed automatic transmission and AMG® Performance 4MATIC®+® All Wheel Drive for better traction and handling.

Its suspension also gets an upgrade with its AMG® ACTIVE RIDE CONTROL. It’s a highly advanced suspension system that can maintain composure and handling precision even on spirited drives. Dynamic engine mounts that adapt to driving conditions improve comfort and stiffening for maximum stability and responsiveness.

Other key features of the 2026 Mercedes AMG® GLS 63 include:

• All features of the GLS 580 plus
• ECO Start/Stop
• Illuminated running boards
• Heated and ventilated front seats
• Heated 2nd-row seats
• Energizing seat kinetics
• Heated steering wheel
• Nappa leather upholstery
• 21-inch AMG® 10-spoke wheels

Frequently Asked Questions: Mercedes-Benz GLS Trims

What are the Mercedes-Benz GLS trim levels?

The GLS lineup includes the GLS 450, the V8-powered GLS 580, and the high-performance AMG® GLS 63. The Mercedes-Maybach GLS 600 sits above them as a separate ultra-luxury model. Every GLS has three rows of seating and all-wheel drive.

What is the difference between the GLS 450 and GLS 580?

The GLS 450 uses a 375-horsepower turbocharged inline-six with mild-hybrid assist, while the GLS 580 steps up to a 530-horsepower biturbo V8 that reaches 60 mph in 4.6 seconds versus 5.4 seconds. The GLS 580 also adds a standard fifth climate zone and 22-inch wheels. For most families, the GLS 450 has plenty of power.

How much does a Mercedes-Benz GLS cost?

Mercedes-Benz USA lists the GLS 450 from $93,950 and the GLS 580 from $120,950, with AMG® GLS 63 pricing listed as coming soon and the Mercedes-Maybach GLS 600 from $180,000, as of October 2026. Those starting MSRPs exclude destination, taxes, and fees.

How many seats does the GLS have?

Every GLS has a standard third row. Mercedes-Benz USA lists the current GLS 450 and GLS 580 with six seats as standard, using second-row captain’s chairs, and seven seats with the optional second-row bench.

Which GLS is the most powerful?

The AMG® GLS 63, with a handcrafted 603-horsepower biturbo V8 with hybrid assist, AMG® Performance 4MATIC®+ all-wheel drive, and AMG® ACTIVE RIDE CONTROL suspension.

Can the Mercedes-Benz GLS tow a boat?

Yes. The GLS 450 and GLS 580 are rated to tow up to 7,700 pounds when properly equipped, which covers many boat and personal-watercraft trailers. Confirm the rating for your exact vehicle and hitch with our team.

Conclusion

The 2026 Mercedes Benz GLS SUV offers luxury and utility across all trims. The GLS 450 is perfect for families and daily city driving with its turbocharged 6-cylinder engine, advanced tech, and great comfort. The GLS 580 is for drivers needing more horsepower and refinement with its V8 engine and enhanced luxury features.

For performance lovers, the AMG® GLS 63 delivers sports-car-like acceleration and exclusive design touches. Whether you prioritize fuel efficiency, power, or unparalleled luxury, there is certainly a GLS that suits your needs.

Ready to experience the 2026 Mercedes Benz GLS in person? Drop by Mercedes-Benz of Fort Walton Beach in Florida and let our expert team help you explore all trim options and make your luxury driving dreams a reality. Or shop the GLS online first.

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