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Lexus NX vs Mercedes B Class comparison

Compare performance (292 HP vs 238 HP), boot space and price (46,000 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – Lexus NX or Mercedes B Class?

Lexus NX vs Mercedes B Class: Key differences

Lexus NX

4.8 (11 Reviews)
rate
  • a bit more power
  • considerably more efficient
  • only slightly quicker 0–100 km/h
details

Mercedes B Class

4.9 (5 Reviews)
rate
  • noticeably cheaper
  • markedly 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.

By Achim Sedelmaier

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

NX

Costs and Efficiency:

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

Mercedes B Class is noticeably cheaper – starting at 33,100 £ , while the Lexus NX costs 46,000 £ . That’s a price difference of around 12,899 £.

Fuel consumption also shows a difference: the Lexus NX uses 2.9 L/100km and is considerably more efficient than the Mercedes B Class with 5.1 L/100km. The difference is about 2.2 L/100km.

B Class

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Lexus NX offers a bit more power – delivering 292 HP compared to 238 HP. That’s roughly 54 HP more horsepower.

When accelerating from 0 to 100 km/h, the Lexus NX is only slightly quicker – completing the sprint in 6.4 s, while the Mercedes B Class takes 6.5 s. That’s about 0.1 s quicker.

NX

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 B Class is markedly lighter – 1,405 kg compared to 1,805 kg. The difference is around 400 kg.

When it comes to payload, the Mercedes B Class carries only slightly more – 550 kg compared to 515 kg. That’s a difference of about 35 kg.

Who wins the race in the data check?

The Lexus NX 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 £46,000
NX

Lexus NX

  • Engine Type : Full Hybrid, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 200 - 292 HP
  • Consumption L/100km : 2.9 - 5.9 L/100km
  • Electric Range : 72 km
details

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 …
Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class is the practical, airy people‑carrier that prioritises space and comfort, while the Mercedes GLA takes the same mechanical smarts and adds SUV looks, higher ride height and a touch more road presence. Pick the B‑Class for family‑friendly sense and efficiency, choose the GLA if …
Lexus NX
Mercedes B Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Lexus NX

The Lexus NX wraps striking, chiseled styling around a cabin that feels more crafted living room than utility vehicle, with soft materials and user-friendly tech that give it genuine premium cachet. On the road it's composed and quietly confident, trading sporty pretensions for a refined, easygoing personality that will suit buyers who want luxury without fuss — with a little Lexus flair to make daily commutes feel special.

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Reviews Lexus NX

4.8 (11 Reviews)
rate
David Jenkins
28 Mar 2026, 20:57:02

Superb handling, averaging 89mpg, decent electric range, very comfortable to drive, good cabin space, good size touch screen, extremely quick, no better car to drive and live with.

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
David Jenkins
2 Feb 2026, 20:38:48

By far the best PHEV in its class, superb handling, top rated relaibility, & super quick on EV mode as well as its well equipped 2.5 litre petrol engine.

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
Pierre Joris
21 Nov 2025, 23:21:12

Lexus has a history and offers a 10-year warranty.

Pierre Joris
21 Nov 2025, 23:20:20

Lexus has a history and offers a 10-year warranty.

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
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Reviews Mercedes B Class

4.9 (5 Reviews)
rate
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

Honda CR-V
Lexus NX
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In the competitive landscape of compact SUVs, the Honda CR-V and Lexus NX stand out for their unique strengths. While the CR-V impresses with its spacious interior and fuel efficiency, the Lexus NX offers a more luxurious feel and advanced technology features. Ultimately, the choice between these …
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Unsure whether the Lexus LBX or the Lexus NX 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 NX
Lexus RZ
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In the battle between the Lexus NX and Lexus RZ, both models showcase the brand’s commitment to luxury and performance. The NX offers a traditional crossover experience with a versatile powertrain lineup, while the RZ, as Lexus's first all-electric SUV, emphasizes sustainability without sacrificing …
BMW 2 Series Active Tourer
Mercedes B Class
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Unsure whether the BMW 2 Series Active Tourer or the Mercedes B 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 NX
Mazda CX-60
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Lexus NX and Mazda CX-60 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 NX
Mazda CX-5
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The Lexus NX stands out with its luxurious interior and advanced technology features, offering a refined driving experience that appeals to upscale buyers. In contrast, the Mazda CX-5 impresses with its sporty handling and engaging dynamics, making it a favorite among those who prioritize fun …
Lexus NX
Volvo XC40
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The Lexus NX and Volvo XC40 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.
Mercedes B Class
Mercedes C Class Sedan
VS
The Mercedes B-Klasse and C-Klasse Limousine are distinct in their appeal, catering to different automotive preferences. The B-Klasse offers a spacious interior and versatility ideal for family-oriented buyers, while the C-Klasse Limousine crafts a more luxurious experience with its sleek design …
Lexus NX
Mercedes B Class

Costs and Consumption
Price
46,000 - 64,300 £
Price
33,100 - 52,500 £
Consumption L/100km
2.9 - 5.9 L/100km
Consumption L/100km
5.1 - 6.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
72 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
65 - 134 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
1,805 - 2,065 kg
Curb weight
1,405 - 1,565 kg
Trunk capacity
-
Trunk capacity
445 - 455 L
Length
-
Length
-
Width
1,865 mm
Width
1,796 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 515 kg
Payload
515 - 550 kg

Engine and Performance
Engine Type
Full Hybrid, Plugin 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
200 - 292 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
6.4 - 8.8 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
-
Max Speed
-
Torque
-
Torque
200 - 400 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
147 - 215 kW
Power kW
85 - 175 kW
Engine capacity
2,487 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
D, B
CO2 Efficiency Class
D, E, F
Brand
Lexus
Brand
Mercedes-Benz
What drivetrain options does the Lexus NX have?

Available configurations include Front-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.