A former British Touring Car support racer, Nick is the founder of ChooseMyCar and brings years of industry insight to the world of cars and car buying.
Overall Rating
4.3/5
Based on expert evaluation and real-world testing
Performance
4.2
Comfort & Interior
4.8
Running Costs
2.9
Practicality
4.5
Expert Review
Our ratings are based on thorough testing and expert evaluation. We consider all aspects of the vehicle, from performance to value for money, ensuring you get a transparent and reliable assessment.
Overview
What makes a luxury SUV truly exceptional? It needs to combine the comfort of a premium saloon with the versatility of a family car, while delivering the commanding presence that only a full-size SUV can offer. The mercedes-benz gls achieves this balance brilliantly, establishing itself as a genuine alternative to rivals from Bavaria and Britain.
At its heart, the GLS excels through its exceptional interior space and refinement. Seven seats come as standard, but unlike many large SUVs, all passengers enjoy genuine comfort rather than merely adequate accommodation. The build quality matches what you’d expect from a luxury saloon, while the ride comfort remains impressive even on Britain’s challenging road surfaces. The range of engines caters for different priorities, from the efficient diesel through to the thunderous AMG variant.
Practicality hasn’t been sacrificed for luxury either. The boot remains usable even with all seats occupied, while the air suspension system proves its worth when loading heavy items or tackling rough terrain. Towing capacity is substantial, making it suitable for those weekend adventures with boats or caravans.
The GLS represents a compelling proposition for those seeking maximum space without compromising on premium appeal. While running costs reflect its luxury positioning, the overall package justifies the investment for buyers prioritising comfort, space, and prestige in equal measure.
How Does the Mercedes-Benz GLS Drive?
Under the bonnet, the Mercedes-Benz GLS offers a range of impressive powertrains. The GLS 350d features a 3.0 litre turbocharged diesel engine producing 286 horsepower. This provides ample power for such a large SUV while maintaining reasonable fuel economy.
For those seeking more performance, the GLS 450 petrol engine delivers 367 horsepower from its mild hybrid system. The range topping AMG GLS 63 produces an incredible 630 horsepower, making it one of the fastest SUVs available.
All versions feature 4MATIC all wheel drive as standard, ensuring confident handling in all conditions. The nine speed automatic transmission shifts smoothly and suits the GLS’s refined character perfectly.
On the road, the GLS feels remarkably composed for such a large vehicle. The air suspension system provides excellent comfort while maintaining good body control through corners.
Key Features
Essential specifications and features
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Engine
3.0L 6-cylinder turbodiesel
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Power Output
286 bhp
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0-60 mph
6.9 seconds
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MPG Combined
35 mpg
- Boot Space
- 355 litres
- Safety Rating
- 5 stars Euro NCAP
- Air suspension, Premium sound system, Panoramic sunroof
Inside the Mercedes-Benz GLS: Comfort & Features
Step inside the GLS and you’re greeted by an interior that rivals the finest luxury saloons. The build quality is exemplary, with premium materials used throughout the spacious cabin.
The front seats offer extensive adjustment and excellent support for long journeys. Heated and ventilated functions are available, along with massage programmes on higher trim levels.
Second row passengers enjoy generous space and comfort, with individual seats available on seven seat configurations. Even the third row provides adequate room for adults on shorter journeys.
Climate control maintains perfect temperatures throughout all three rows. The cabin remains remarkably quiet at motorway speeds thanks to excellent sound insulation.
Storage solutions are well thought out, with cupholders, charging points, and storage compartments strategically placed throughout the interior.
The gls excels with exhilarating performance matched by refined comfort, creating a driving experience that exceeds expectations in every way.
How Much Does It Cost to Run a Mercedes-Benz GLS?
As expected from a luxury SUV of this size, running costs are substantial. Car finance options can help spread the initial purchase cost over manageable monthly payments.
Fuel economy varies significantly between engine options. The diesel GLS 350d achieves around 35 mpg in mixed driving, while petrol variants typically return 25-30 mpg.
Insurance costs reflect the GLS’s high value and powerful engines. Annual premiums will be significant, particularly for AMG performance variants.
Servicing should be carried out at Mercedes-Benz specialists to maintain warranty coverage. Service intervals are reasonable at 12,500 miles or annually.
Depreciation is considerable in the first few years, though Mercedes-Benz models typically hold their value better than many competitors.
How Does It Compare?
Compare key features and specifications
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mercedes-benz gls
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BMW X7
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Audi Q7
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|---|---|---|---|
| Starting Price | from £72,000 | from £74,000 | from £58,000 |
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Performance
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| Engine | 3.0L Turbodiesel 286hp | 3.0L Turbodiesel 265hp | 3.0L Turbodiesel 231hp |
| Power | 286 bhp | 265 bhp | 231 bhp |
| 0-60 mph | 6.9 seconds | 7.0 seconds | 7.1 seconds |
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Running Costs
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| MPG Combined | 35 mpg | 33 mpg | 37 mpg |
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Practicality
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| Boot Space | 355 litres | 326 litres | 295 litres |
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Standard Features
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| Key Features | Seven seats, Air suspension, Premium interior, 4MATIC all-wheel drive | Luxury cabin, Advanced tech, Seven seats | Virtual cockpit, Quattro system, Value pricing |
Mercedes-Benz GLS Practicality & Boot Space
Despite its luxury focus, the GLS delivers impressive practicality for families and business users alike. The seven seat configuration provides genuine accommodation for larger groups.
Boot space is generous even with all seats in use, expanding significantly when the third row is folded. The powered tailgate and loading sill height make cargo loading straightforward.
Towing capacity reaches 3,500kg when properly equipped, making it suitable for boat or caravan duties. The air suspension can be lowered for easier loading and raised for challenging terrain.
Interior storage includes numerous cupholders, door bins, and cubby holes throughout the cabin. USB charging points ensure all passengers can keep devices powered.
For those considering used Mercedes-Benz cars, the GLS represents excellent value in the pre owned market with comprehensive dealer support available.
: “We’ve owned our GLS 350d for two years and it’s been exceptional. The comfort on long journeys is unmatched, and the third row actually fits adults properly. Fuel economy is better than expected for such a large vehicle. The technology takes some learning but becomes intuitive with use. Service costs are high but the dealer experience is excellent. Perfect for our family of six with plenty of luggage space for holidays. Would definitely buy another Mercedes SUV.”
The Mercedes-Benz GLS represents the pinnacle of luxury SUV design and engineering. Its combination of space, comfort, and technology creates a compelling package for discerning buyers.
While running costs are substantial, the GLS delivers exceptional value through its comprehensive equipment levels and impressive build quality. The range of engines ensures there’s a suitable option for most requirements.
For those seeking the ultimate family SUV with no compromise on luxury, the GLS stands as the obvious choice. Its blend of practicality and prestige is unmatched in the current market.
The used market offers excellent opportunities to access GLS ownership at more affordable prices, making this exceptional SUV accessible to a wider audience.