VS

Lexus RX vs Mercedes B Class comparison

Compare performance (371 HP vs 238 HP), boot space and price (63,300 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – Lexus RX or Mercedes B Class?

Lexus RX vs Mercedes B Class: Key differences

Lexus RX

5 (1 Reviews)
rate
  • visibly more power
  • substantially more efficient
  • marginally quicker 0–100 km/h
  • very slightly more trunk space
details

Mercedes B Class

4.9 (6 Reviews)
rate
  • significantly cheaper
  • substantially lighter
details

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

RX

Costs and Efficiency:

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

Mercedes B Class is significantly cheaper – starting at 33,100 £ , while the Lexus RX costs 63,300 £ . That’s a price difference of around 30,171 £.

Fuel consumption also shows a difference: the Lexus RX uses 3.3 L/100km and is substantially more efficient than the Mercedes B Class with 5.1 L/100km. The difference is about 1.8 L/100km.

B Class

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 visibly more power – delivering 371 HP compared to 238 HP. That’s roughly 133 HP more horsepower.

When accelerating from 0 to 100 km/h, the Lexus RX is marginally quicker – completing the sprint in 6.2 s, while the Mercedes B Class takes 6.5 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Lexus RX delivers clearly more torque with 551 Nm compared to 400 Nm. That’s about 151 Nm more.

RX

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 B Class is substantially lighter – 1,405 kg compared to 2,040 kg. The difference is around 635 kg.

Looking at boot space, the Lexus RX offers very slightly more boot space – 461 L compared to 455 L. That’s a difference of about 6 L.

When it comes to payload, the Lexus RX carries slightly more – 620 kg compared to 550 kg. That’s a difference of about 70 kg.

Who wins the race in the data check?

The Lexus RX 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 £63,300
RX

Lexus RX

  • Engine Type Full Hybrid, Plug-in Hybrid
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 207 - 371 HP
  • Consumption L/100km 3.3 - 8.1 L/100km
  • Electric Range 67 km
details

Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class and Mercedes GLA target buyers who want Mercedes practicality with premium touches, but they take different paths: the B‑Class is a spacious, hatchback-style people carrier while the GLA is a compact crossover with a higher ride height and sportier stance. This comparison looks …
BMW 2 Series Active Tourer
Mercedes B Class
VS
The BMW 2 Series Active Tourer and the Mercedes B‑Class are the two leading compact MPVs for buyers who need practical space without the bulk of an SUV. The 2 Series Active Tourer leans toward a driver-focused, sharper feel, while the B‑Class prioritizes passenger comfort, flexible packaging and a …
Lexus RX
Mercedes B Class

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
78278-rxmatadorredmica7715
78265-rxmatadorredmica7160
78241-rxmatadorredmica5677
78283-23rxinteriorillumination3724b
78251-rxmatadorredmica5799trunkf

Reviews Lexus RX

5 (1 Reviews)
rate
Angelo Ponte
16 May 2026, 14:16:35

Tried as a replacement car. The driving pleasure and comfort are unmatched by Alfa.

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
18C0947_011
18C0947_009
18C0953_005
18C0953_035
18C0947_044

Reviews Mercedes B Class

4.9 (6 Reviews)
rate
SiBa
31 Jul 2026, 14:51:34

We've been driving only the B180D automatic for 9 years — there's nothing better. Great on long trips; the next one will be another B180D automatic.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Safety
Practicality / Trunk & Everyday Use
Value for Money
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

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

Frequently compared as well

Mercedes A Class
Mercedes B Class
VS
The Mercedes A‑Class is the sporty, tech‑savvy compact that thrills with sharp handling and a slick cockpit, while the Mercedes B‑Class trades a bit of attitude for towering practicality, roomier seats and a more useful boot. Choose the A‑Class if you want driving fun and style; pick the B‑Class if …
Audi Q2
Mercedes B Class
VS
In the competitive compact SUV market, the Audi Q2 stands out with its bold design and sporty handling, appealing to those seeking a dynamic driving experience. In contrast, the Mercedes B-Klasse emphasizes practicality and comfort, offering a spacious interior and advanced technology features that …
Lexus NX
Lexus RX
VS
In the realm of luxury SUVs, the Lexus NX and RX each bring distinct qualities to the table, catering to different preferences of sophisticated drivers. The Lexus NX, known for its agile handling and compact size, is perfect for urban environments, offering a sleek design and advanced technology in …
Honda Civic
Mercedes B Class
VS
The Honda Civic and Mercedes B Class compete for the top spot in your garage. See how both models differ in key areas like performance, running costs, interior space and technology. A fast, clear comparison helps you pick the one that fits your needs best.
Lexus RX
Lexus RZ
VS
Lexus RX and Lexus RZ go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice.
Lexus RX
Mercedes A Class
VS
Unsure whether the Lexus RX or the Mercedes A Class is the better match? Compare both models directly and discover differences in power, efficiency, comfort and value for money — all summarized in one easy view to support your decision.
Lexus RX
Toyota RAV4
VS
Lexus RX and Toyota RAV4 go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice.
Lexus RX
Volvo XC60
VS
The Lexus RX and Volvo XC60 compete for the top spot in your garage. See how both models differ in key areas like performance, running costs, interior space and technology. A fast, clear comparison helps you pick the one that fits your needs best.
Lexus RX
Mercedes B Class

Costs and Consumption
Price
63,300 - 87,400 £
Price
33,100 - 52,500 £
Consumption L/100km
3.3 - 8.1 L/100km
Consumption L/100km
5.1 - 6.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
67 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
75 - 183 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
2,040 - 2,185 kg
Curb weight
1,405 - 1,565 kg
Trunk capacity
461 L
Trunk capacity
445 - 455 L
Length
-
Length
-
Width
1,920 mm
Width
1,796 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
575 - 620 kg
Payload
515 - 550 kg

Engine and Performance
Engine Type
Full Hybrid, Plug-in Hybrid
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox, CVT
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
207 - 371 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
6.2 - 7.9 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
-
Max Speed
-
Torque
551 Nm
Torque
200 - 400 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
152 - 273 kW
Power kW
85 - 175 kW
Engine capacity
2,393 - 2,487 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2,024 - 2,025
Model Year
2025
CO2 Efficiency Class
G, E, B
CO2 Efficiency Class
D, E, F
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.