Motoring.Today
In-depth review

Mercedes-Benz GLS SUV (2019 onwards) review

Motoring Today Editorial · Updated 25 Jul 2026 · 8 min read· 2019–onwards

Mercedes-Benz GLS SUV (2019 onwards) View gallery (15)

The Mercedes-Benz GLS SUV is back, and this time it’s electric! As the world shifts towards greener alternatives, this retro icon has been reborn to cater to eco-conscious commuters without sacrificing luxury or performance.

The Mercedes-Benz GLS SUV is a standout choice for those seeking a luxury vehicle that combines space, comfort, and advanced technology. Its impressive performance, coupled with the introduction of the Retro Icon Reborn electric variant, positions it as a forward-thinking option in the SUV market. Whether you prioritise traditional luxury or are looking to embrace electric driving, the GLS SUV caters to both preferences seamlessly. Highly recommended for families and individuals alike, it offers a perfect blend of practicality and prestige.

At a glance

325

hp · Power

635

miles · Range / tank

6.1s

0–60 mph

££

Running costs

From £1294/mo

Typical finance

Motoring.Today. verdict

Best for

  • Exceptional luxury and comfort
  • Advanced safety and technology features
  • Versatile performance across various driving conditions
  • Electric variant offers eco-friendly driving options

Consider alternatives if

  • Higher initial purchase price compared to some competitors
  • Size may be cumbersome in tight urban spaces
  • Running costs can be significant for petrol/diesel variants

Finance snapshot

Typical monthly payment

£1294/month

Based on PCP · 48 months · £7,800 deposit

Best suited for

  • Company Car Drivers
  • Petrol/Diesel Buyers
  • High Mileage Drivers
  • Families

Affordability

Premium

Above average monthly commitment.

Theo's AI summary

The Mercedes-Benz GLS SUV is a standout choice for those seeking a luxury vehicle that combines space, comfort, and advanced technology. Its impressive performance, coupled with the introduction of the Retro Icon Reborn electric variant, positions it as a forward-thinking option in the SUV market. Whether you prioritise traditional luxury or are looking to embrace electric driving, the GLS SUV caters to both preferences seamlessly. Highly recommended for families and individuals alike, it offers a perfect blend of practicality and prestige.

Best match for

  • Practical families
  • Performance enthusiasts
  • Budget-conscious buyers

Estimated ownership costs

Based on 10,000 miles per year

Fuel

£183/month

Insurance

£181/month

Road Tax

£50/month

Servicing

£60/month

Estimated total

£474/month

Could this fit your budget?

Check your eligibility with a soft search that won't affect your credit score.

  • Real monthly payments
  • Personalised to you
  • No obligation

Safe, secure and confidential

Handling in the Mercedes-Benz GLS SUV is remarkably agile for a vehicle of its size. The sophisticated suspension system, combined with precise steering, allows for confident cornering and stability on various terrains. Whether navigating city streets or tackling off-road adventu

Verified spec data

Specifications

Performance

Power

325–549 bhp

0–60 mph

4.7 s

Fastest in range

Top speed

155 mph

Engine

2,925–3,982 cc

Economy & running

Fuel economy

20.3–34.0 mpg

WLTP combined

Miles per £

4.3 mpp

CO₂

217–315 g/km

Insurance group

47–50 of 50

Road tax

£600/yr

Standard VED

Dimensions & practicality

Length

5,207 mm

Width

2,157 mm

Wheelbase

3,135 mm

Kerb weight

2,630 kg

Seats

7

Doors

5

Figures span the 15 recorded trim variants (2019–2023). Exact figures vary by trim, options and model year — always confirm on the specific car's listing.

Check this GLS before you buy

Mercedes-Benz GLS SUV (2019 onwards) for saleBrowse live UK stockMOT history checkFree DVSA MOT & advisoriesCar tax checkerCheck annual VED road taxULEZ / CAZ checkerClean Air Zone compliance

External voices

What the experts say

Parkers

The Mercedes-Benz GLS SUV impresses with its luxurious interior, spacious seating, and advanced technology. Owners appreciate the smooth ride and powerful engine options. However, some critics note its hefty price tag and fuel economy could be better.

Read full review
Autocar

The GLS boasts a commanding presence with its bold design and high-quality materials. Reviewers praise its spaciousness and comfort, making it ideal for families. However, its size can make it cumbersome in tight spaces.

Read full review
WhatCar

The GLS is generally reliable, with a strong build quality and good warranty coverage. However, some owners have reported issues with electronic systems, which could be a concern for potential buyers.

Ownership intelligence

The real cost of owning one

Finance & affordability

Finance options for the Mercedes-Benz GLS SUV are varied, with competitive leasing and financing plans available through Mercedes-Benz Financial Services. Potential buyers can explore tailored packages that suit their budget and preferences, ensuring that owning a luxury SUV is within reach.

Day-to-day running costs

Running Costs for the Mercedes-Benz GLS SUV are competitive within the luxury SUV segment, particularly considering its size and capabilities. Regular maintenance and servicing are essential to keep the vehicle in optimal condition, and Mercedes-Benz offers comprehensive service packages to ease ownership costs. Additionally, the GLS SUV's fuel efficiency, especially in the hybrid and electric variants, can help mitigate long-term expenses.

Charging & fuel

For the electric variant, charging infrastructure is becoming increasingly accessible, with many public charging stations available across the UK. Home charging options also provide convenience for owners. For petrol or diesel models, the GLS SUV offers respectable fuel economy figures, making it a practical choice for those who prefer traditional fuel sources.

Heritage

Milestones & history

  1. 2019

    Launch of the new generation Mercedes-Benz GLS SUV

  2. 2021

    Introduction of hybrid variants

  3. 2023

    Launch of the Retro Icon Reborn electric variant

Read full launch story

The Mercedes-Benz GLS SUV was designed to provide a luxurious and spacious vehicle that meets the demands of modern families and individuals seeking comfort and performance. Since its inception, the GLS has evolved from a traditional luxury SUV into a technologically advanced vehicle, incorporating hybrid and electric options to align with contemporary environmental standards and consumer preferences.

Compare with alternatives

The Mercedes-Benz GLS SUV (2019 onwards) competes strongly in the luxury SUV segment, offering superior cabin quality and space compared to its rivals, while maintaining a similar price point.

BMW X7

Reference only

Luxury SUV with a focus on performance and technology.

vs features
The BMW X7 offers a sportier driving experience compared to the GLS, with precise handling and a powerful engine lineup. It features advanced tech like a large infotainment display and driver assistance systems, but the GLS is often regarded as having a more luxurious cabin with higher-quality materials.
vs price
The BMW X7 is generally priced similarly to the GLS, with both vehicles positioned in the luxury SUV segment, though specific trims can vary significantly in price.
No Motoring.Today review

Audi Q8

Reference only

Stylish luxury SUV with a focus on design and technology.

vs features
The Audi Q8 features a modern and tech-savvy interior with a dual touchscreen setup, but it is smaller than the GLS, offering less cargo space and third-row seating. The driving experience is smooth and comfortable, but the GLS is often seen as more spacious and luxurious.
vs price
The Q8 is typically less expensive than the GLS, making it a more budget-friendly option in the luxury SUV market.
No Motoring.Today review

Land Rover Range Rover

Reference only

High-end luxury SUV known for off-road capability and opulence.

vs features
The Range Rover is renowned for its off-road prowess and luxurious interior, often matching or exceeding the GLS in terms of cabin quality. However, the GLS may offer a more user-friendly infotainment system and a smoother on-road driving experience.
vs price
The Range Rover is generally priced similarly to the GLS, with both vehicles being at the higher end of the luxury SUV market.
No Motoring.Today review

Available now

Mercedes-Benz GLS SUV (2019 onwards) for sale on Motoring.Today

Mercedes-Benz GLS SUV (2019 onwards) trim & engine line-up

Representative trims and engines recorded for this model.

TrimFuelPower0–60EconomyCO₂Ins.New price
Maybach GLS 600 4M 1st Class Night Srs 5dr 9G-TronAutomatic · 4 wheel drive · 2024–NowPetrol549 bhp4.7s20.3 mpg315 g/km50£207,905
Maybach GLS 600 4Matic Night Series 5dr 9G-TronicAutomatic · 4 wheel drive · 2024–NowPetrol549 bhp4.7s20.5 mpg312 g/km50£203,605
GLS 450 4Matic Business Class 5dr 9G-TronicAutomatic · 4 wheel drive · 2023–NowPetrol375 bhp5.9s25.9 - 26.2 mpg245 g/km50£120,200
GLS 450 4Matic AMG Line Premium + 5dr 9G-TronicAutomatic · 4 wheel drive · 2023–NowPetrol375 bhp5.9s26.4 - 26.7 mpg241 g/km50£110,200
GLS 450d 4Matic Business Class 5dr 9G-TronicAutomatic · 4 wheel drive · 2023–NowDiesel361 bhp5.9s33.2 - 33.6 mpg221 g/km50£118,200
GLS 400d 4Matic AMG Line Night Ed 5dr 9G-TronicAutomatic · 4 wheel drive · 2021–2023Diesel325 bhp6.1s32.1 mpg229 g/km48£86,485
Maybach GLS 600 4Matic 5dr 9G-TronicAutomatic · 4 wheel drive · 2020–2023Petrol549 bhp4.7s21.1 mpg304 g/km50£168,400

Specs by trim

GLS 400 d 4Matic AMG Line Premium 9G-Tronic auto 5dDiesel Automatic · 2019–2021
Power
325 bhp
0–60 mph
6.1 s
Top speed
148 mph
Torque
700 Nm
Economy
32.1 mpg
Range
635 mi
CO₂
231 g/km
Insurance group
47
Road tax
£600
New price
£77,570
GLS 400 d 4Matic AMG Line Premium Plus 9G-Tronic auto 5dDiesel Automatic · 2019–2021
Power
325 bhp
0–60 mph
6.1 s
Top speed
148 mph
Torque
700 Nm
Economy
31.7 mpg
Range
627 mi
CO₂
232 g/km
Insurance group
47
Road tax
£600
New price
£85,820
GLS 400 d 4Matic AMG Line Premium Plus Executive 9G-Tronic auto 5dDiesel Automatic · 2019–2021
Power
325 bhp
0–60 mph
6.1 s
Top speed
148 mph
Torque
700 Nm
Economy
32.8 mpg
Range
649 mi
CO₂
232 g/km
Insurance group
48
Road tax
£600
New price
£94,070
Maybach GLS 600 4Matic 5dr 9G-TronicPetrol Automatic · 2020–2023
Power
549 bhp
0–60 mph
4.7 s
Top speed
155 mph
Torque
730 Nm
Economy
21.1 mpg
Range
417 mi
CO₂
304 g/km
Insurance group
50
Road tax
£600
New price
£168,400
Maybach GLS 600 4Matic 5dr 9G-TronicPetrol Automatic · 2020–2023
Power
549 bhp
0–60 mph
4.7 s
Top speed
155 mph
Torque
730 Nm
Economy
21.1 mpg
Range
417 mi
CO₂
304 g/km
Insurance group
50
Road tax
£600
New price
£168,400
Maybach GLS 600 4Matic First Class 5dr 9G-TronicPetrol Automatic · 2020–2023
Power
549 bhp
0–60 mph
4.7 s
Top speed
155 mph
Torque
730 Nm
Economy
21.1 mpg
Range
417 mi
CO₂
304 g/km
Insurance group
50
Road tax
£600
New price
£175,150

+ 9 more trim variants

FAQs

What makes the Mercedes-Benz GLS SUV a luxury SUV?
The Mercedes-Benz GLS SUV combines a spacious interior, premium materials, advanced technology, and top-notch safety features, ensuring a luxurious driving experience.
How does the electric variant of the GLS perform?
The electric variant of the GLS offers smooth acceleration, impressive range, and instant torque, making it a performance SUV that excels in both urban and motorway driving.
What are the running costs for the GLS electric vehicle?
Running costs for the GLS are competitive, with lower maintenance expenses and government incentives for electric vehicles, making it an economical choice for luxury SUV buyers.
Is the GLS suitable for families?
Yes, the GLS features a spacious interior and advanced safety features, making it an ideal choice for families seeking comfort and security in a premium vehicle.
What is the history of the Mercedes-Benz GLS SUV?
Launched in 2019, the GLS has evolved through various updates, including hybrid and electric variants, enhancing its luxury, performance, and eco-friendly driving capabilities.

Mercedes-Benz GLS SUV (2019 onwards) (2019–onwards)

From £1294/month