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Isuzu D-Max vs Mercedes GLB comparison

Compare performance (163 HP vs 354 HP), boot space and price (35,900 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Isuzu D-Max or Mercedes GLB?

Isuzu D-Max vs Mercedes GLB: Key differences

Isuzu D-Max

4.7 (2 Reviews)
rate
  • markedly cheaper
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Mercedes GLB

3.6 (4 Reviews)
rate
  • considerably more power
  • significantly more efficient
  • only slightly lighter
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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.

By Achim Sedelmaier

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

D-Max

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Isuzu D-Max is markedly cheaper – starting at 35,900 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 7,292 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is significantly more efficient than the Isuzu D-Max with 8.6 L/100km. The difference is about 2.9 L/100km.

GLB

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes GLB offers considerably more power – delivering 354 HP compared to 163 HP. That’s roughly 191 HP more horsepower.

There’s also a difference in torque: the Mercedes GLB delivers markedly more torque with 515 Nm compared to 400 Nm. That’s about 115 Nm more.

D-Max

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLB is only slightly lighter – 1,840 kg compared to 1,900 kg. The difference is around 60 kg.

When it comes to payload, the Isuzu D-Max carries significantly more – 1,115 kg compared to 505 kg. That’s a difference of about 610 kg.

Who wins the race in the data check?

The Mercedes GLB is decisively ahead 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 £43,200
GLB

Mercedes GLB

  • Engine Type Electric, Full Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 156 - 354 HP
  • Consumption L/100km 5.7 - 6.1 L/100km
  • Consumption kWh/100km 15.4 - 15.9 kWh/100km
  • Electric Range 431 - 631 km
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Isuzu D-Max
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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)
rate
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 GLB

The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.

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Reviews Mercedes GLB

3.6 (4 Reviews)
rate
Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

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

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Isuzu D-Max
Mercedes GLB

Costs and Consumption
Price
35,900 - 52,500 £
Price
43,200 - 62,400 £
Consumption L/100km
8.6 - 9.1 L/100km
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
-
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
225 - 237 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Pickup
Body Type
SUV
Seats
2 - 5
Seats
5
Doors
-
Doors
-
Curb weight
1,900 - 2,130 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
-
Trunk capacity
540 L
Length
-
Length
-
Width
1,810 - 1,870 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
970 - 1,115 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Diesel
Engine Type
Electric, Full Hybrid
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
163 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
-
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
400 Nm
Torque
280 - 515 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
120 kW
Power kW
115 - 260 kW
Engine capacity
2,164 cm3
Engine capacity
1,499 cm3

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
G
CO2 Efficiency Class
A, D, E
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.