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Porsche 911 Convertible vs Ferrari Roma Convertible comparison

Compare performance (711 HP vs 620 HP), boot space and price (138,000 £ vs 207,700 £ ) at a glance. Find out which car is the better choice for you – Porsche 911 Convertible or Ferrari Roma Convertible?

Porsche 911 Convertible vs Ferrari Roma Convertible: Key differences

Porsche 911 Convertible

  • clearly cheaper
  • moderately more power
  • markedly quicker 0–100 km/h
  • barely lighter
  • noticeably more trunk space
details

Ferrari Roma Convertible

  • very slightly more efficient
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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.

Porsche 911 Convertible is clearly cheaper – starting at 138,000 £ , while the Ferrari Roma Convertible costs 207,700 £ . That’s a price difference of around 69,699 £.

Fuel consumption also shows a difference: the Ferrari Roma Convertible uses 10.3 L/100km and is very slightly more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 0.2 L/100km.

Roma Convertible

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 moderately more power – delivering 711 HP compared to 620 HP. That’s roughly 91 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is markedly quicker – completing the sprint in 2.6 s, while the Ferrari Roma Convertible takes 3.4 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the Porsche 911 Convertible delivers barely more torque with 800 Nm compared to 760 Nm. That’s about 40 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.

Both vehicles offer seating for 4 people.

In terms of curb weight, Porsche 911 Convertible is barely lighter – 1,572 kg compared to 1,654 kg. The difference is around 82 kg.

Looking at boot space, the Porsche 911 Convertible offers noticeably more boot space – 373 L compared to 272 L. That’s a difference of about 101 L.

Who wins the race in the data check?

The Porsche 911 Convertible 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 £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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Ferrari Roma Convertible

The Ferrari Roma Spider dresses the marque’s drama in a restrained, almost polite suit, folding its roof away to reveal a cabin that feels as civilized as it does intoxicating. Behind the wheel it serves grand touring manners with a playful shove and soundtrack, perfect for drivers who want thrilling Ferrari emotion without the daily fuss.

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Costs and Consumption
Price
138,000 - 244,500 £
Price
207,700 £
Consumption L/100km
10.5 - 13.7 L/100km
Consumption L/100km
10.3 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
237 - 310 g/km
co2
234 g/km
Fuel tank capacity
-
Fuel tank capacity
80 L

Dimensions and Body
Body Type
Convertible
Body Type
Convertible
Seats
2 - 4
Seats
4
Doors
-
Doors
2
Curb weight
1,572 - 1,900 kg
Curb weight
1,654 kg
Trunk capacity
163 - 373 L
Trunk capacity
272 L
Length
-
Length
4,656 mm
Width
1,852 - 1,900 mm
Width
1,974 mm
Height
-
Height
1,306 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
195 - 345 kg
Payload
-

Engine and Performance
Engine Type
Petrol, Full Hybrid
Engine Type
Petrol
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
394 - 711 HP
Power HP
620 HP
Acceleration 0-100km/h
2.6 - 4.7 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
320 km/h
Torque
450 - 800 Nm
Torque
760 Nm
Number of Cylinders
6
Number of Cylinders
8
Power kW
290 - 523 kW
Power kW
456 kW
Engine capacity
2,981 - 3,996 cm3
Engine capacity
3,855 cm3

General
Model Year
2,024 - 2,026
Model Year
2023
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Porsche
Brand
Ferrari
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.