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Porsche 911 Convertible vs Porsche Boxster comparison

Compare performance (711 HP vs 500 HP), boot space and price (138,000 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – Porsche 911 Convertible or Porsche Boxster?

Porsche 911 Convertible vs Porsche Boxster: Key differences

Porsche 911 Convertible

  • visibly more power
  • visibly more efficient
  • noticeably quicker 0–100 km/h
  • clearly more trunk space
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Porsche Boxster

  • only slightly cheaper
  • marginally lighter
details

By Achim Sedelmaier

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

911 Convertible

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Porsche Boxster is only slightly cheaper – starting at 136,000 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 1,972 £.

Fuel consumption also shows a difference: the Porsche 911 Convertible uses 10.5 L/100km and is visibly more efficient than the Porsche Boxster with 12.7 L/100km. The difference is about 2.2 L/100km.

Boxster

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 Porsche 911 Convertible offers visibly more power – delivering 711 HP compared to 500 HP. That’s roughly 211 HP more horsepower.

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

There’s also a difference in torque: the Porsche 911 Convertible delivers significantly more torque with 800 Nm compared to 450 Nm. That’s about 350 Nm more.

Space and Everyday Use:

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

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

In terms of curb weight, Porsche Boxster is marginally lighter – 1,485 kg compared to 1,572 kg. The difference is around 87 kg.

Looking at boot space, the Porsche 911 Convertible offers clearly more boot space – 373 L compared to 122 L. That’s a difference of about 251 L.

When it comes to payload, the Porsche 911 Convertible carries markedly more – 345 kg compared to 270 kg. That’s a difference of about 75 kg.

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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Porsche Boxster

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Porsche Boxster

Costs and Consumption
Price
138,000 - 244,500 £
Price
136,000 £
Consumption L/100km
10.5 - 13.7 L/100km
Consumption L/100km
12.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
237 - 310 g/km
co2
288 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Convertible
Body Type
Roadster
Seats
2 - 4
Seats
2
Doors
-
Doors
2
Curb weight
1,572 - 1,900 kg
Curb weight
1,485 kg
Trunk capacity
163 - 373 L
Trunk capacity
122 L
Length
-
Length
4,418 mm
Width
1,852 - 1,900 mm
Width
1,822 mm
Height
-
Height
1,252 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
195 - 345 kg
Payload
270 kg

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
500 HP
Acceleration 0-100km/h
2.6 - 4.7 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
308 km/h
Torque
450 - 800 Nm
Torque
450 Nm
Number of Cylinders
6
Number of Cylinders
6
Power kW
290 - 523 kW
Power kW
368 kW
Engine capacity
2,981 - 3,996 cm3
Engine capacity
3,996 cm3

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