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Mazda MX-5 Roadster vs Porsche 911 Convertible comparison

Compare performance (132 HP vs 711 HP), boot space and price (28,400 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – Mazda MX-5 Roadster or Porsche 911 Convertible?

Mazda MX-5 Roadster vs Porsche 911 Convertible: Key differences

Mazda MX-5 Roadster

  • clearly cheaper
  • clearly more efficient
  • substantially lighter
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Porsche 911 Convertible

  • clearly more power
  • substantially quicker 0–100 km/h
  • clearly 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 key factors when choosing a car – and this is often where the real differences emerge.

Mazda MX-5 Roadster is clearly cheaper – starting at 28,400 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 109,552 £.

Fuel consumption also shows a difference: the Mazda MX-5 Roadster uses 6.2 L/100km and is clearly more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 4.3 L/100km.

911 Convertible

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 Porsche 911 Convertible offers clearly more power – delivering 711 HP compared to 132 HP. That’s roughly 579 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is substantially quicker – completing the sprint in 2.6 s, while the Mazda MX-5 Roadster takes 8.3 s. That’s about 5.7 s quicker.

There’s also a difference in torque: the Porsche 911 Convertible delivers substantially more torque with 800 Nm compared to 152 Nm. That’s about 648 Nm more.

MX-5 Roadster

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Seats: Porsche 911 Convertible offers more seats – 4 vs 2.

In terms of curb weight, Mazda MX-5 Roadster is substantially lighter – 1,078 kg compared to 1,572 kg. The difference is around 494 kg.

Looking at boot space, the Porsche 911 Convertible offers clearly more boot space – 373 L compared to 130 L. That’s a difference of about 243 L.

When it comes to payload, the Porsche 911 Convertible carries considerably more – 345 kg compared to 152 kg. That’s a difference of about 193 kg.

Who wins the race in the data check?

The Porsche 911 Convertible 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 £138,000
911 Convertible

Porsche 911 Convertible

  • Engine Type : Petrol, Full Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 394 - 711 HP
  • Consumption L/100km : 10.5 - 13.7 L/100km
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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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Porsche 911 Convertible

The Porsche 911 Cabriolet transforms the iconic silhouette into an open‑air weapon, offering roof-down glamour and razor-sharp handling that still feels perfectly composed on normal roads. It’s the kind of car that serves daily duties with surprising ease while delivering intoxicating engine music and a grin factor that makes every trip feel like a small victory.

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Reviews Porsche 911 Convertible

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

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Mazda MX-5 Roadster
Porsche 911 Convertible

Costs and Consumption
Price
28,400 - 33,800 £
Price
138,000 - 244,500 £
Consumption L/100km
6.2 L/100km
Consumption L/100km
10.5 - 13.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
140 g/km
co2
237 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Convertible
Seats
2
Seats
2 - 4
Doors
-
Doors
-
Curb weight
1,078 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
130 L
Trunk capacity
163 - 373 L
Length
-
Length
-
Width
1,735 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
152 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Petrol, Full Hybrid
Transmission
Manuel
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
132 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
8.3 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
-
Max Speed
-
Torque
152 Nm
Torque
450 - 800 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
97 kW
Power kW
290 - 523 kW
Engine capacity
1,496 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2025
Model Year
2,024 - 2,026
CO2 Efficiency Class
E
CO2 Efficiency Class
G
Brand
Mazda
Brand
Porsche
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.