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Mazda MX-5 Coupe vs Mercedes GLB comparison

Compare performance (132 HP vs 354 HP), boot space and price (30,800 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Mazda MX-5 Coupe or Mercedes GLB?

Mazda MX-5 Coupe vs Mercedes GLB: Key differences

Mazda MX-5 Coupe

  • considerably cheaper
  • considerably lighter
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • considerably more power
  • barely more efficient
  • significantly quicker 0–100 km/h
  • considerably 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-5 Coupe

Costs and Efficiency:

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

Mazda MX-5 Coupe is considerably cheaper – starting at 30,800 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 12,349 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is barely more efficient than the Mazda MX-5 Coupe with 6.2 L/100km. The difference is about 0.5 L/100km.

GLB

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 GLB offers considerably more power – delivering 354 HP compared to 132 HP. That’s roughly 222 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is significantly quicker – completing the sprint in 5.5 s, while the Mazda MX-5 Coupe takes 8.6 s. That’s about 3.1 s quicker.

There’s also a difference in torque: the Mercedes GLB delivers considerably more torque with 515 Nm compared to 152 Nm. That’s about 363 Nm more.

MX-5 Coupe

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: Mercedes GLB offers more seats – 5 vs 2.

In terms of curb weight, Mazda MX-5 Coupe is considerably lighter – 1,114 kg compared to 1,840 kg. The difference is around 726 kg.

Looking at boot space, the Mercedes GLB offers considerably more boot space – 540 L compared to 127 L. That’s a difference of about 413 L.

When it comes to payload, the Mercedes GLB carries significantly more – 505 kg compared to 166 kg. That’s a difference of about 339 kg.

Who wins the race in the data check?

The Mercedes GLB 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 £43,200
GLB

Mercedes GLB

  • Engine Type : Electric, Full Hybrid
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 156 - 354 HP
  • Consumption L/100km : 5.7 - 6.1 L/100km
  • Consumption kWh/100km : 15.4 - 15.9 kWh/100km
  • Electric Range : 431 - 631 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mazda MX-5 Coupe

The Mazda MX-5 is a delightfully pure driver's car, wrapped in a compact package and tuned to make steering inputs feel like a conversation rather than a chore. It won’t overwhelm you with gadgetry, but what it delivers—nimble handling, instant feedback and an honest grin every time you drive—makes it a brilliant choice for anyone who values fun over flash.

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Reviews Mazda MX-5 Coupe

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

Mercedes GLB

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 Mercedes GLB

3.6 (4 Reviews)
rate
Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

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

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Mazda MX-5 Coupe
Mercedes GLB

Costs and Consumption
Price
30,800 - 36,200 £
Price
43,200 - 62,400 £
Consumption L/100km
6.2 L/100km
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
-
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
140 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Coupe
Body Type
SUV
Seats
2
Seats
5
Doors
-
Doors
-
Curb weight
1,114 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
127 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,735 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
166 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Electric, Full Hybrid
Transmission
Manuel
Transmission
Automatic
Transmission Detail
Manual Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
132 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
8.6 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
152 Nm
Torque
280 - 515 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
97 kW
Power kW
115 - 260 kW
Engine capacity
1,496 cm3
Engine capacity
1,499 cm3

General
Model Year
2025
Model Year
2026
CO2 Efficiency Class
E
CO2 Efficiency Class
A, D, E
Brand
Mazda
Brand
Mercedes-Benz
Is the Mazda MX-5 Coupe offered with different drivetrains?

The Mazda MX-5 Coupe is offered with Rear-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.