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Porsche 911 Convertible vs Mazda MX-5 Coupe comparison

Compare performance (711 HP vs 132 HP), boot space and price (138,000 £ vs 31,400 £ ) at a glance. Find out which car is the better choice for you – Porsche 911 Convertible or Mazda MX-5 Coupe?

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

Porsche 911 Convertible

  • clearly more power
  • considerably quicker 0–100 km/h
  • considerably more trunk space
details

Mazda MX-5 Coupe

  • clearly cheaper
  • significantly more efficient
  • substantially lighter
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By Achim Sedelmaier

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

911 Convertible

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-5 Coupe is clearly cheaper – starting at 31,400 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 106,638 £.

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

MX-5 Coupe

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 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 considerably quicker – completing the sprint in 2.6 s, while the Mazda MX-5 Coupe takes 8.6 s. That’s about 6 s quicker.

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

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 Coupe is substantially lighter – 1,114 kg compared to 1,572 kg. The difference is around 458 kg.

Looking at boot space, the Porsche 911 Convertible offers considerably more boot space – 373 L compared to 127 L. That’s a difference of about 246 L.

When it comes to payload, the Porsche 911 Convertible carries substantially more – 345 kg compared to 166 kg. That’s a difference of about 179 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

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

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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

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Costs and Consumption
Price
138,000 - 244,500 £
Price
31,400 - 36,700 £
Consumption L/100km
10.5 - 13.7 L/100km
Consumption L/100km
6.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
237 - 310 g/km
co2
140 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Coupe
Seats
2 - 4
Seats
2
Doors
-
Doors
-
Curb weight
1,572 - 1,900 kg
Curb weight
1,114 kg
Trunk capacity
163 - 373 L
Trunk capacity
127 L
Length
-
Length
-
Width
1,852 - 1,900 mm
Width
1,735 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
195 - 345 kg
Payload
166 kg

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

General
Model Year
2,024 - 2,026
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
E
Brand
Porsche
Brand
Mazda
What drivetrain options does the Porsche 911 Convertible have?

The Porsche 911 Convertible is offered with Rear-Wheel Drive or All-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.