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Lexus RX vs Mercedes GLB comparison

Compare performance (371 HP vs 354 HP), boot space and price (63,300 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Lexus RX or Mercedes GLB?

Lexus RX vs Mercedes GLB: Key differences

Lexus RX

  • marginally more power
  • substantially more efficient
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • clearly cheaper
  • considerably more electric range
  • somewhat quicker 0–100 km/h
  • a bit lighter
  • slightly more trunk space
details

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

RX

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes GLB is clearly cheaper – starting at 43,200 £ , while the Lexus RX costs 63,300 £ . That’s a price difference of around 20,103 £.

Fuel consumption also shows a difference: the Lexus RX uses 3.3 L/100km and is substantially more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 2.4 L/100km.

As for electric range, the Mercedes GLB offers considerably more range – reaching up to 631 km, about 564 km more than the Lexus RX.

GLB

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 Lexus RX offers marginally more power – delivering 371 HP compared to 354 HP. That’s roughly 17 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is somewhat quicker – completing the sprint in 5.5 s, while the Lexus RX takes 6.2 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Lexus RX delivers only slightly more torque with 551 Nm compared to 515 Nm. That’s about 36 Nm more.

RX

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLB is a bit lighter – 1,840 kg compared to 2,040 kg. The difference is around 200 kg.

Looking at boot space, the Mercedes GLB offers slightly more boot space – 540 L compared to 461 L. That’s a difference of about 79 L.

When it comes to payload, the Lexus RX carries slightly more – 620 kg compared to 505 kg. That’s a difference of about 115 kg.

Who wins the race in the data check?

The Mercedes GLB is clearly superior overall 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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Lexus RX
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Lexus RX

The Lexus RX glides through city streets with the kind of hushed refinement that turns mundane commutes into a private lounge. It mixes plush comfort and polished practicality in a package that suits buyers who want to arrive relaxed and a touch smug.

details
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Reviews Lexus RX

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

Mercedes GLB

The Mercedes GLB is a practical compact SUV that mixes boxy, family-friendly space with premium German polish, making it an appealing choice for buyers who want usefulness without pretension. It drives with a confident, composed feel and somehow manages to look both rugged and refined — the grown-up SUV that still likes to have fun.

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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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Lexus RX
Mercedes GLB

Costs and Consumption
Price
63,300 - 87,400 £
Price
43,200 - 62,400 £
Consumption L/100km
3.3 - 8.1 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
67 km
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
75 - 183 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,040 - 2,185 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
461 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,920 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
575 - 620 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Full Hybrid, Plugin Hybrid
Engine Type
Electric, Full Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox, CVT
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
207 - 371 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
6.2 - 7.9 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
551 Nm
Torque
280 - 515 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
152 - 273 kW
Power kW
115 - 260 kW
Engine capacity
2,393 - 2,487 cm3
Engine capacity
1,499 cm3

General
Model Year
2,024 - 2,025
Model Year
2026
CO2 Efficiency Class
G, E, B
CO2 Efficiency Class
A, D, E
Brand
Lexus
Brand
Mercedes-Benz
Is the Lexus RX offered with different drivetrains?

The Lexus RX is offered with 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.