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Mazda MX-5 Roadster vs Mercedes G Class comparison

Compare performance (132 HP vs 605 HP), boot space and price (28,400 £ vs 106,600 £ ) at a glance. Find out which car is the better choice for you – Mazda MX-5 Roadster or Mercedes G Class?

Mazda MX-5 Roadster vs Mercedes G Class: Key differences

Mazda MX-5 Roadster

  • considerably cheaper
  • clearly more efficient
  • significantly lighter
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Mercedes G Class

  • substantially more power
  • significantly quicker 0–100 km/h
  • significantly more trunk space
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By Achim Sedelmaier

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

MX-5 Roadster

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mazda MX-5 Roadster is considerably cheaper – starting at 28,400 £ , while the Mercedes G Class costs 106,600 £ . That’s a price difference of around 78,142 £.

Fuel consumption also shows a difference: the Mazda MX-5 Roadster uses 6.2 L/100km and is clearly more efficient than the Mercedes G Class with 8.7 L/100km. The difference is about 2.5 L/100km.

G 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 Mercedes G Class offers substantially more power – delivering 605 HP compared to 132 HP. That’s roughly 473 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes G Class is significantly quicker – completing the sprint in 4.4 s, while the Mazda MX-5 Roadster takes 8.3 s. That’s about 3.9 s quicker.

There’s also a difference in torque: the Mercedes G Class delivers considerably more torque with 1,164 Nm compared to 152 Nm. That’s about 1,012 Nm more.

MX-5 Roadster

Space and Everyday Use:

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

Seats: Mercedes G Class offers more seats – 5 vs 2.

In terms of curb weight, Mazda MX-5 Roadster is significantly lighter – 1,078 kg compared to 2,485 kg. The difference is around 1,407 kg.

Looking at boot space, the Mercedes G Class offers significantly more boot space – 640 L compared to 130 L. That’s a difference of about 510 L.

When it comes to payload, the Mercedes G Class carries considerably more – 715 kg compared to 152 kg. That’s a difference of about 563 kg.

Who wins the race in the data check?

The Mercedes G Class 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 £106,600
G Class

Mercedes G Class

  • Engine Type : Petrol MHEV, Diesel MHEV, Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 387 - 605 HP
  • Consumption L/100km : 8.7 - 14.7 L/100km
  • Consumption kWh/100km : 28 kWh/100km
  • Electric Range : 479 km
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Mazda MX-5 Roadster
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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 Roadster

The Mazda MX-5 is a featherweight, open-top sports car that turns ordinary roads into a grin-inducing playground thanks to razor-sharp steering and an engaging, tactile gearbox. It won’t swallow the weekly shopping or ski bags, but for anyone after pure driving fun and sun-on-your-face weekends, few cars match its sheer charm and value.

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Reviews Mazda MX-5 Roadster

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Mercedes G Class

The G-Class, often called the G‑Wagen, is a blocky icon that blends unapologetic off-road prowess with a plush, modern cabin, announcing your arrival before you even step out. It’s equally at home crawling over rocks or cruising city streets, and owning one feels like adopting a very expensive, very capable personality.

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Mazda MX-5 Roadster
Mercedes G Class

Costs and Consumption
Price
28,400 - 33,800 £
Price
106,600 - 171,000 £
Consumption L/100km
6.2 L/100km
Consumption L/100km
8.7 - 14.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
28 kWh/100km
Electric Range
-
Electric Range
479 km
Battery Capacity
-
Battery Capacity
-
co2
140 g/km
co2
0 - 336 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Off-Roader
Seats
2
Seats
5
Doors
-
Doors
-
Curb weight
1,078 kg
Curb weight
2,485 - 3,085 kg
Trunk capacity
130 L
Trunk capacity
640 L
Length
-
Length
-
Width
1,735 mm
Width
1,931 - 1,984 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
152 kg
Payload
115 - 715 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Petrol MHEV, Diesel MHEV, Electric
Transmission
Manuel
Transmission
Automatic
Transmission Detail
Manual Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
132 HP
Power HP
387 - 605 HP
Acceleration 0-100km/h
8.3 s
Acceleration 0-100km/h
4.4 - 5.8 s
Max Speed
-
Max Speed
-
Torque
152 Nm
Torque
760 - 1,164 Nm
Number of Cylinders
4
Number of Cylinders
6 - 8
Power kW
97 kW
Power kW
285 - 445 kW
Engine capacity
1,496 cm3
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2025
Model Year
2,025 - 2,026
CO2 Efficiency Class
E
CO2 Efficiency Class
G, A
Brand
Mazda
Brand
Mercedes-Benz
What drive types are available for the Mazda MX-5 Roadster?

The Mazda MX-5 Roadster is available as 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.