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Lexus LBX vs Mercedes B Class comparison

Compare performance (136 HP vs 238 HP), boot space and price (28,300 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – Lexus LBX or Mercedes B Class?

Lexus LBX vs Mercedes B Class: Key differences

Lexus LBX

4.7 (4 Reviews)
rate
  • a bit cheaper
  • moderately more efficient
  • very slightly lighter
details

Mercedes B Class

4.9 (6 Reviews)
rate
  • clearly more power
  • considerably quicker 0–100 km/h
  • visibly 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

LBX

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.

Lexus LBX is a bit cheaper – starting at 28,300 £ , while the Mercedes B Class costs 33,100 £ . That’s a price difference of around 4,852 £.

Fuel consumption also shows a difference: the Lexus LBX uses 4.5 L/100km and is moderately more efficient than the Mercedes B Class with 5.1 L/100km. The difference is about 0.6 L/100km.

B Class

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 B Class offers clearly more power – delivering 238 HP compared to 136 HP. That’s roughly 102 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes B Class is considerably quicker – completing the sprint in 6.5 s, while the Lexus LBX takes 9.2 s. That’s about 2.7 s quicker.

There’s also a difference in torque: the Mercedes B Class delivers substantially more torque with 400 Nm compared to 185 Nm. That’s about 215 Nm more.

LBX

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, Lexus LBX is very slightly lighter – 1,280 kg compared to 1,405 kg. The difference is around 125 kg.

Looking at boot space, the Mercedes B Class offers visibly more boot space – 455 L compared to 332 L. That’s a difference of about 123 L.

When it comes to payload, the Mercedes B Class carries slightly more – 550 kg compared to 475 kg. That’s a difference of about 75 kg.

Who wins the race in the data check?

The Mercedes B Class is far ahead 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 £33,100
B Class

Mercedes B Class

  • Engine Type Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 238 HP
  • Consumption L/100km 5.1 - 6.9 L/100km
Lexus LBX
Mercedes B Class

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Lexus LBX

The Lexus LBX is a compact premium crossover that brings Lexus styling and craftsmanship to city driving, pairing a cozy interior with thoughtful tech and upscale materials. It focuses on a quiet, refined ride and fuel-efficient everyday usability while carrying the brand’s familiar emphasis on comfort and safety.

details

Mercedes B Class

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
Lexus LBX
Mercedes B Class

Costs and Consumption

Price
28,300 - 40,000 £
Price
33,100 - 52,500 £
Consumption L/100km
4.5 - 4.8 L/100km
Consumption L/100km
5.1 - 6.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
102 - 110 g/km
co2
133 - 156 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
MPV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,280 - 1,365 kg
Curb weight
1,405 - 1,565 kg
Trunk capacity
255 - 332 L
Trunk capacity
445 - 455 L
Length
-
Length
-
Width
1,825 mm
Width
1,796 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
455 - 475 kg
Payload
515 - 550 kg

Engine and Performance

Engine Type
Full Hybrid
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
CVT
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
136 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
9.2 - 9.6 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
-
Max Speed
-
Torque
185 Nm
Torque
200 - 400 Nm
Number of Cylinders
3
Number of Cylinders
4
Power kW
100 kW
Power kW
85 - 175 kW
Engine capacity
1,490 cm3
Engine capacity
1,332 - 1,991 cm3

General

Model Year
2025
Model Year
2025
CO2 Efficiency Class
C
CO2 Efficiency Class
D, E, F
Brand
Lexus
Brand
Mercedes-Benz
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.