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Mazda CX-30 vs Mercedes GLB - Differences and prices compared

Compare performance (186 HP vs 320 HP), boot space and price (25200 £ vs 40500 £ ) at a glance. Find out which car is the better choice for you – Mazda CX-30 or Mercedes GLB?

Mazda CX-30

5 (1 Reviews)
rate

Mercedes GLB

5 (1 Reviews)
rate

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

CX-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 CX-30 has a significantly advantage in terms of price – it starts at 25200 £ , while the Mercedes GLB costs 40500 £ . That’s a price difference of around 15275 £.

Fuel consumption also shows a difference: Mercedes GLB manages with 5.60 L and is therefore slight more efficient than the Mazda CX-30 with 5.70 L. The difference is about 0.10 L per 100 km.

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 Mercedes GLB has a significantly edge – offering 320 HP compared to 186 HP. That’s roughly 134 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes GLB is clearly quicker – completing the sprint in 5.50 s, while the Mazda CX-30 takes 8.30 s. That’s about 2.80 s faster.

There’s also a difference in torque: Mercedes GLB pulls clearly perceptible stronger with 400 Nm compared to 240 Nm. That’s about 160 Nm difference.

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CX-30

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In curb weight, Mazda CX-30 is somewhat lighter – 1455 kg compared to 1640 kg. The difference is around 185 kg.

In terms of boot space, the Mercedes GLB offers noticeable more room – 570 L compared to 430 L. That’s a difference of about 140 L.

When it comes to payload, Mercedes GLB minimal takes the win – 500 kg compared to 496 kg. That’s a difference of about 4 kg.

Who wins the race in the data check?

The Mercedes GLB 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.

Mazda CX-30
Mercedes GLB

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £40,500
GLB

Mercedes GLB

  • Engine Type : Petrol MHEV, Diesel
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 320 HP
  • Consumption L/100km : 5.6 - 9 L
details

Mazda CX-30

5 (1 Reviews)
rate

The Mazda CX-30 blends sleek coupe-like lines with the practicality of a compact crossover, feeling more premium than its price tag suggests. It’s a joy to drive for anyone who likes a taut chassis and an interior that treats daily commutes like a small luxury escape.

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Mercedes GLB

5 (1 Reviews)
rate

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 Mazda CX-30

5 (1 Reviews)
rate

Reviews Mercedes GLB

5 (1 Reviews)
rate

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Mazda CX-30
Mercedes GLB

Costs and Consumption
Price
25200 - 36800 £
Price
40500 - 65300 £
Consumption L/100km
5.7 - 6.6 L
Consumption L/100km
5.6 - 9 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
129 - 148 g/km
co2
146 - 204 g/km
Fuel tank capacity
-
Fuel tank capacity
52 - 60 L

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1455 - 1587 kg
Curb weight
1640 - 1820 kg
Trunk capacity
422 - 430 L
Trunk capacity
565 - 570 L
Length
-
Length
4634 - 4650 mm
Width
1795 mm
Width
1834 - 1850 mm
Height
-
Height
1665 - 1692 mm
Max trunk capacity
-
Max trunk capacity
1800 - 1805 L
Payload
458 - 496 kg
Payload
500 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Petrol MHEV, Diesel
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
140 - 186 HP
Power HP
116 - 320 HP
Acceleration 0-100km/h
8.3 - 10.3 s
Acceleration 0-100km/h
5.5 - 11.5 s
Max Speed
-
Max Speed
188 - 250 km/h
Torque
238 - 240 Nm
Torque
230 - 400 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
103 - 137 kW
Power kW
85 - 235 kW
Engine capacity
1998 - 2488 cm3
Engine capacity
1332 - 1991 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
D, E
CO2 Efficiency Class
E, F, G
Brand
Mazda
Brand
Mercedes-Benz

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What drive types are available for the Mazda CX-30?

The Mazda CX-30 is offered with Front-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.