🏷️ 2025 Mercedes-Benz GLS-Class Review – Specs, Features, Pros & Verdict
1. Vehicle Overview
The 2025 Mercedes-Benz GLS-Class is the brand’s flagship full-size luxury SUV, sitting above the GLC and GLE in the Mercedes lineup. Originally introduced as the GL-Class, it was renamed the GLS in 2016 to align with the brand’s sedan hierarchy — effectively making it the “S-Class of SUVs.”
Offering three-row seating, immense comfort, and exceptional refinement, the 2025 GLS competes with top-tier rivals like the BMW X7, Range Rover, and Cadillac Escalade. It’s available in GLS 450, GLS 580, GLS 600 Maybach, and AMG GLS 63 variants, all powered by advanced mild-hybrid or hybrid-assisted drivetrains.
2. Key Specifications
| Specification | Detail |
|---|---|
| Engine Options | 3.0L inline-6 mild hybrid (GLS 450), 4.0L twin-turbo V8 mild hybrid (GLS 580 / AMG 63), 4.0L V8 Maybach (GLS 600) |
| Power / Torque | 381–612 hp / up to 850 Nm |
| Transmission | 9G-Tronic automatic |
| Drivetrain | 4MATIC all-wheel drive |
| 0–100 km/h | 6.1 s (GLS 450) – 4.2 s (AMG 63) |
| Top Speed | Up to 250 km/h (electronically limited) |
| Dimensions (L x W x H) | 5,214 x 1,956 x 1,823 mm |
| Boot Capacity | 355–2,400 L (depending on seat configuration) |
| Fuel Economy (Combined) | 9.5–12.0 L/100 km (WLTP) |
| Towing Capacity | Up to 3,500 kg |
3. Exterior Design
The 2025 GLS-Class exudes luxury through sheer presence. The upright front grille, chrome accents, and power-dome bonnet emphasize authority, while the updated Digital Light LED headlamps and new taillight signatures modernize its look. The large body is elegantly proportioned, with optional 23-inch wheels, chrome running boards, and a panoramic sunroof enhancing its premium character.
In Maybach trim, the GLS gains a distinctive two-tone paint scheme, vertical chrome grille slats, and unique wheels — giving it an ultra-luxury limousine aesthetic.
4. Interior, Comfort & Materials
Inside, the GLS is nothing short of opulent. Every surface is wrapped in leather, wood, or aluminum, and build quality is exquisite.
Highlights include
12.3-inch digital instrument cluster + 12.3-inch MBUX touchscreen
Heated, ventilated, and massaging seats (front and rear)
5-zone automatic climate control
Ambient lighting with 64 colors
Panoramic glass roof
The second-row seats recline electrically, while the third row offers adult-sized comfort — a rarity in luxury SUVs. In Maybach and AMG trims, passengers can enjoy executive-style rear seats, complete with entertainment screens and individual climate zones.
5. Features & Infotainment
The GLS features Mercedes’ second-generation MBUX infotainment system:
Dual 12.3-inch displays with touchscreen + voice interface
Wireless Apple CarPlay / Android Auto
Hey Mercedes” AI assistant
Augmented Reality Navigation
Burmester 3D surround or High-End 4D sound system (Maybach)
Rear-seat entertainment with dual 11.6-inch screens (optional)
OTA software updates, multiple user profiles, and remote connectivity via Mercedes Me
6. Safety & Ratings
The GLS-Class is built for maximum safety, using high-strength steel and aluminum to ensure rigidity.
Standard and optional systems include
Active Brake Assist
Evasive Steering Assist
Blind Spot Monitoring
Lane Keeping Assist
PRE-SAFE and PRE-SAFE Sound
Adaptive Cruise Control (DISTRONIC PLUS)
360° camera with Trailer Assist
Night Vision Assist (optional)
Although not frequently crash-tested due to its size and price, the GLS platform has an excellent safety reputation consistent with Mercedes’ flagship standards.
7. Driving Performance
Despite its size, the GLS drives with remarkable smoothness and control. The 3.0L inline-six in the GLS 450 delivers confident power, while the 4.0L V8 in the GLS 580 and AMG variants adds effortless acceleration and a rich exhaust note.
The 48V EQ Boost system provides instant torque and assists with efficiency.
Key highlights
AIRMATIC air suspension standard across the range
Optional E-Active Body Control (camera-based predictive damping)
Rear-axle steering for improved maneuverability
Off-Road Mode with adjustable ground clearance
The result is an SUV that feels both majestic and composed — equally at home on the highway or rough terrain.
8. Fuel Efficiency / EV Range
All GLS models use mild-hybrid tech for better economy and smoother start-stop transitions:
| GLS 450 | ~9.5 L/100 km |
| GLS 580 | ~10.9 L/100 km |
| AMG GLS 63 | ~12.0 L/100 km |
There’s no full EV version yet (that role is filled by the EQS SUV), but a plug-in hybrid GLS is under development for release in upcoming years.
9. Practicality & Everyday Usability
Practicality is a strong suit
Seats up to 7 adults in comfort
Power-folding 2nd and 3rd rows
355 L boot (all seats up) → 2,400 L (rear rows folded)
Flat loading bay and hands-free tailgate
High driving position with commanding visibility
Despite its size, rear-axle steering and parking sensors make urban driving surprisingly manageable.
10. Warranty & Maintenance
| Warranty | 3 years / unlimited mileage |
| Service intervals | 12 months or 15,000 km |
| Mild-hybrid components | Covered under main vehicle warranty |
Extended warranty and prepaid maintenance available via Mercedes ServiceCare
11. Price & Value for Money
Approximate pricing (Europe, 2025)
| GLS 450 4MATIC | €110,000 |
| GLS 580 4MATIC | €130,000 |
AMG GLS 63 4MATIC+: €175,000
| Mercedes-Maybach GLS 600 | €210,000+ |
While premium-priced, the GLS delivers S-Class luxury with SUV practicality, making it excellent value for those wanting the ultimate Mercedes experience for the family.
12. Comparison with Rivals
| Model | Engine | Power | Drivetrain | 0–100 km/h | Price (approx.) |
|---|---|---|---|---|---|
| Mercedes-Benz GLS 580 | 4.0L V8 MHEV | 517 hp | AWD | 5.0 s | €130,000 |
| BMW X7 M60i | 4.4L V8 MHEV | 530 hp | AWD | 4.7 s | €135,000 |
| Range Rover P530 | 4.4L V8 MHEV | 530 hp | AWD | 4.5 s | €140,000 |
| Cadillac Escalade V | 6.2L V8 | 682 hp | AWD | 4.4 s | €155,000 |
13. Pros & Cons
Pros
S-Class luxury in SUV form
Exceptionally quiet and refined cabin
Powerful engines with mild-hybrid tech
True 7-seat capability
Advanced air suspension and ride comfort
Cons
Very large footprint for city use
Expensive to buy and maintain
Fuel economy behind plug-in rivals
High-spec trims push pricing above €200k
14. Overall Rating
4.8 / 5
15. Final Verdict
The 2025 Mercedes-Benz GLS-Class stands as the benchmark full-size luxury SUV, delivering an unbeatable mix of comfort, technology, power, and prestige. It’s the ideal choice for buyers who want S-Class sophistication with SUV space and presence. From the smooth GLS 450 to the opulent Maybach 600 and performance-packed AMG 63, every variant defines automotive luxury at the highest level.
16. Affiliate CTA
Interested in the 2025 Mercedes-Benz GLS-Class? Compare lease, finance, and insurance packages from certified Mercedes dealers to find the perfect luxury SUV deal today.
Pros & cons
- Raised driving position and practical cabin layout
- Useful family-friendly versatility
- Premium badge appeal and refined cabin ambience
- Good fit for UK buyers who choose the right trim
- Strong shortlist candidate when total costs are checked
- Final value depends heavily on trim, options and finance price
- Larger wheels can reduce ride comfort and raise tyre costs
- Availability, standard equipment and pricing may vary during the year
Final verdict
The GLS-Class is a credible option in the UK market if it matches your priorities. The smartest approach is to decide what matters most - comfort, space, efficiency, performance, image or technology - then compare the exact trim against two or three rivals on the same route and the same finance basis. Choose the version that feels easiest to live with, not simply the one with the longest equipment list.
Buyer checkpoints
| Buyer checkpoint | True Motion Auto view |
|---|---|
| Best for | Drivers wanting a raised driving position and useful family practicality, premium materials, image and comfort. |
| Body style | Suv/Crossover |
| Powertrain focus | Petrol, diesel or hybrid depending on model year and trim |
| UK ownership note | Check insurance group, VED, charging or fuel costs and service-plan pricing before buying. |
| Verdict | Worth shortlisting if its size, running costs and equipment match your daily use. |
Frequently asked questions
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Specifications, prices and equipment were current at publication and vary by model year, trim and market. Verify final details with a franchised dealer before ordering. Read how we review cars and our editorial policy.