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Isuzu D-Max vs Mercedes GLS comparison

Compare performance (163 HP vs 404 HP), boot space and price (35,900 £ vs 92,700 £ ) at a glance. Find out which car is the better choice for you – Isuzu D-Max or Mercedes GLS?

Isuzu D-Max vs Mercedes GLS: Key differences

Isuzu D-Max

4.7 (2 Reviews)
rate
  • substantially cheaper
  • markedly lighter
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Mercedes GLS

4.3 (1 Reviews)
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  • clearly more power
  • very slightly more efficient
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

Here’s where it gets real: The technical differences in detail

D-Max

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Isuzu D-Max is substantially cheaper – starting at 35,900 £ , while the Mercedes GLS costs 92,700 £ . That’s a price difference of around 56,757 £.

Fuel consumption also shows a difference: the Mercedes GLS uses 7.9 L/100km and is very slightly more efficient than the Isuzu D-Max with 8.6 L/100km. The difference is about 0.7 L/100km.

GLS

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Mercedes GLS offers clearly more power – delivering 404 HP compared to 163 HP. That’s roughly 241 HP more horsepower.

There’s also a difference in torque: the Mercedes GLS delivers considerably more torque with 750 Nm compared to 400 Nm. That’s about 350 Nm more.

D-Max

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: Mercedes GLS offers more seats – 7 vs 5.

In terms of curb weight, Isuzu D-Max is markedly lighter – 1,900 kg compared to 2,580 kg. The difference is around 680 kg.

When it comes to payload, the Isuzu D-Max carries visibly more – 1,115 kg compared to 820 kg. That’s a difference of about 295 kg.

Who wins the race in the data check?

The Mercedes GLS stands out in the key areas in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £92,700
GLS

Mercedes GLS

  • Engine Type Petrol MHEV, Diesel MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 336 - 404 HP
  • Consumption L/100km 7.9 - 9.9 L/100km
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Frequently compared as well

Isuzu D-Max
Toyota Hilux
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Isuzu D-Max
Mercedes GLS

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Isuzu D-Max

The Isuzu D-Max wears its workhorse credentials with quiet confidence, delivering rugged practicality and a cabin that keeps things simple and sensible. If you want a dependable truck that gets on with the job without fuss—and even manages a bit of comfort on the road—the D-Max is a smart, no-nonsense pick.

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Reviews Isuzu D-Max

4.7 (2 Reviews)
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Luis Estrada
28 May 2026, 03:20:26

Excellent truck, the Isuzu D-Max 3.0... less blah, blah, blah and more economy, better engine and robustness, and more comfort when driving

The whole "Toyotized" marketing thing is another story; it's a good vehicle, but it's given more fame than it deserves — very bouncy, unstable, I almost rolled one of them

I've had a Hilux 3.0, then a Mazda BT-50 2.2, but now an Isuzu D-Max 3.0... marketing won't fool me — body quality has dropped, electrical systems have many problems, and Toyotas have become more disposable in my view and according to five workshops I consulted... nothing like the Toyotas from 2015

How do you mainly use this car? (optional): City / Short distance
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Safety
Practicality / Trunk & Everyday Use
Value for Money
Luis Estrada
26 Dec 2025, 04:05:50

Robustness, reliability, durability, cornering stability

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Practicality / Trunk & Everyday Use
Value for Money

Mercedes GLS

The GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.

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Reviews Mercedes GLS

4.3 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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Isuzu D-Max
Mercedes GLS

Costs and Consumption
Price
35,900 - 52,500 £
Price
92,700 - 104,600 £
Consumption L/100km
8.6 - 9.1 L/100km
Consumption L/100km
7.9 - 9.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
225 - 237 g/km
co2
206 - 226 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Pickup
Body Type
SUV
Seats
2 - 5
Seats
7
Doors
-
Doors
-
Curb weight
1,900 - 2,130 kg
Curb weight
2,580 - 2,670 kg
Trunk capacity
-
Trunk capacity
355 L
Length
-
Length
-
Width
1,810 - 1,870 mm
Width
1,956 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
970 - 1,115 kg
Payload
810 - 820 kg

Engine and Performance
Engine Type
Diesel
Engine Type
Petrol MHEV, Diesel MHEV
Transmission
Manual, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
163 HP
Power HP
336 - 404 HP
Acceleration 0-100km/h
-
Acceleration 0-100km/h
5.6 - 6.2 s
Max Speed
-
Max Speed
-
Torque
400 Nm
Torque
560 - 750 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
120 kW
Power kW
247 - 297 kW
Engine capacity
2,164 cm3
Engine capacity
2,989 - 2,999 cm3

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Isuzu
Brand
Mercedes-Benz
What drivetrain options does the Isuzu D-Max have?

The Isuzu D-Max is offered with Rear-Wheel Drive or All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.