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Mercedes GLB vs McLaren GT Series comparison

Compare performance (354 HP vs 635 HP), boot space and price (43,200 £ vs 175,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or McLaren GT Series?

Mercedes GLB vs McLaren GT Series: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • clearly cheaper
  • substantially more efficient
  • visibly more trunk space
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McLaren GT Series

  • substantially more power
  • considerably quicker 0–100 km/h
  • markedly 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

GLB

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mercedes GLB is clearly cheaper – starting at 43,200 £ , while the McLaren GT Series costs 175,700 £ . That’s a price difference of around 132,517 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is substantially more efficient than the McLaren GT Series with 11.9 L/100km. The difference is about 6.2 L/100km.

GT Series

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 McLaren GT Series offers substantially more power – delivering 635 HP compared to 354 HP. That’s roughly 281 HP more horsepower.

When accelerating from 0 to 100 km/h, the McLaren GT Series is considerably quicker – completing the sprint in 3.2 s, while the Mercedes GLB takes 5.5 s. That’s about 2.3 s quicker.

There’s also a difference in torque: the McLaren GT Series delivers slightly more torque with 630 Nm compared to 515 Nm. That’s about 115 Nm more.

GLB

Space and Everyday Use:

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

Seats: Mercedes GLB offers more seats – 5 vs 2.

In terms of curb weight, McLaren GT Series is markedly lighter – 1,520 kg compared to 1,840 kg. The difference is around 320 kg.

Looking at boot space, the Mercedes GLB offers visibly more boot space – 540 L compared to 420 L. That’s a difference of about 120 L.

Who wins the race in the data check?

The Mercedes GLB stands well ahead of its rival 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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Frequently compared as well

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McLaren GT Series

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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

McLaren GT Series

The McLaren GT takes the supercar blueprint and stretches it into a grand tourer, marrying thrilling pace with genuine long-distance comfort and a cabin that’s actually liveable. If you crave weekend escape capability without surrendering driver engagement, this is the car to consider — though it does attract a fair share of admiring glances.

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Reviews McLaren GT Series

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

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McLaren GT Series

Costs and Consumption
Price
43,200 - 62,400 £
Price
175,700 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
11.9 L/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
-
Electric Range
431 - 631 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
270 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
-
Curb weight
1,840 - 2,280 kg
Curb weight
1,520 kg
Trunk capacity
540 L
Trunk capacity
420 L
Length
-
Length
-
Width
1,861 mm
Width
2,045 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
-

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
156 - 354 HP
Power HP
635 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
3.2 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
630 Nm
Number of Cylinders
4
Number of Cylinders
8
Power kW
115 - 260 kW
Power kW
467 kW
Engine capacity
1,499 cm3
Engine capacity
3,994 cm3

General
Model Year
2026
Model Year
2023
CO2 Efficiency Class
A, D, E
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
McLaren
What drive types are available for the Mercedes GLB?

Available configurations include 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.