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Mazda MX-30 vs Mercedes B Class comparison

Compare performance (170 HP vs 238 HP), boot space and price (30,800 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – Mazda MX-30 or Mercedes B Class?

Mazda MX-30 vs Mercedes B Class: Key differences

Mazda MX-30

4.6 (1 Reviews)
rate
  • very slightly cheaper
details

Mercedes B Class

4.9 (5 Reviews)
rate
  • visibly more power
  • clearly quicker 0–100 km/h
  • visibly lighter
  • noticeably 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

MX-30

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mazda MX-30 is very slightly cheaper – starting at 30,800 £ , while the Mercedes B Class costs 33,100 £ . That’s a price difference of around 2,281 £.

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 Mercedes B Class offers visibly more power – delivering 238 HP compared to 170 HP. That’s roughly 68 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes B Class is clearly quicker – completing the sprint in 6.5 s, while the Mazda MX-30 takes 9.1 s. That’s about 2.6 s quicker.

MX-30

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 visibly lighter – 1,405 kg compared to 1,849 kg. The difference is around 444 kg.

Looking at boot space, the Mercedes B Class offers noticeably more boot space – 455 L compared to 350 L. That’s a difference of about 105 L.

When it comes to payload, the Mercedes B Class carries clearly more – 550 kg compared to 402 kg. That’s a difference of about 148 kg.

Who wins the race in the data check?

The Mazda MX-30 holds a decisive overall lead 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 £30,800
MX-30

Mazda MX-30

  • Engine Type : Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 170 HP
  • Consumption kWh/100km : 18.3 kWh/100km
  • Electric Range : 85 km
details

Frequently compared as well

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Mercedes B Class
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Mercedes B Class
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Mazda MX-30
Mercedes B Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mazda MX-30

The Mazda MX-30 trades conventional EV practicality for a boutique vibe, wrapping easy urban agility and a stylish, artisan interior into a compact package that stands out in the crossover crowd. It’s ideal for city-minded buyers who value design and driving feel over long-distance trips, and its quirky details prove Mazda can be playful without losing its driver-focused soul.

details
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Reviews Mazda MX-30

4.6 (1 Reviews)
rate

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

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.

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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

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Mazda MX-30
Mercedes B Class

Costs and Consumption
Price
30,800 - 37,100 £
Price
33,100 - 52,500 £
Consumption L/100km
-
Consumption L/100km
5.1 - 6.9 L/100km
Consumption kWh/100km
18.3 kWh/100km
Consumption kWh/100km
-
Electric Range
85 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
22 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
5
Doors
-
Curb weight
1,849 kg
Curb weight
1,405 - 1,565 kg
Trunk capacity
332 - 350 L
Trunk capacity
445 - 455 L
Length
4,395 mm
Length
-
Width
1,848 mm
Width
1,796 mm
Height
1,555 mm
Height
-
Max trunk capacity
1,137 - 1,155 L
Max trunk capacity
-
Payload
402 kg
Payload
515 - 550 kg

Engine and Performance
Engine Type
Plugin Hybrid
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
170 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
9.1 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
140 km/h
Max Speed
-
Torque
-
Torque
200 - 400 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
125 kW
Power kW
85 - 175 kW
Engine capacity
830 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
B
CO2 Efficiency Class
D, E, F
Brand
Mazda
Brand
Mercedes-Benz
What drivetrain options does the Mazda MX-30 have?

Available configurations include Front-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.