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BMW 4 Series Convertible vs Porsche 911 Coupe comparison

Compare performance (530 HP vs 711 HP), boot space and price (52,600 £ vs 125,800 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or Porsche 911 Coupe?

BMW 4 Series Convertible vs Porsche 911 Coupe: Key differences

BMW 4 Series Convertible

  • clearly cheaper
  • significantly more efficient
  • very slightly more trunk space
details

Porsche 911 Coupe

  • noticeably more power
  • substantially quicker 0–100 km/h
  • moderately lighter
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By Achim Sedelmaier

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

4 Series Convertible

Costs and Efficiency:

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

BMW 4 Series Convertible is clearly cheaper – starting at 52,600 £ , while the Porsche 911 Coupe costs 125,800 £ . That’s a price difference of around 73,200 £.

Fuel consumption also shows a difference: the BMW 4 Series Convertible uses 5.2 L/100km and is significantly more efficient than the Porsche 911 Coupe with 10.3 L/100km. The difference is about 5.1 L/100km.

911 Coupe

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 Coupe offers noticeably more power – delivering 711 HP compared to 530 HP. That’s roughly 181 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Coupe is substantially quicker – completing the sprint in 2.5 s, while the BMW 4 Series Convertible takes 3.7 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Porsche 911 Coupe delivers moderately more torque with 800 Nm compared to 700 Nm. That’s about 100 Nm more.

4 Series Convertible

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: BMW 4 Series Convertible offers more seats – 4 vs 2.

In terms of curb weight, Porsche 911 Coupe is moderately lighter – 1,536 kg compared to 1,765 kg. The difference is around 229 kg.

Looking at boot space, the BMW 4 Series Convertible offers very slightly more boot space – 385 L compared to 373 L. That’s a difference of about 12 L.

When it comes to payload, the BMW 4 Series Convertible carries markedly more – 420 kg compared to 310 kg. That’s a difference of about 110 kg.

Who wins the race in the data check?

The BMW 4 Series Convertible is decisively ahead 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 £52,600
4 Series Convertible

BMW 4 Series Convertible

  • Engine Type Diesel MHEV, Petrol, Petrol MHEV
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 184 - 530 HP
  • Consumption L/100km 5.2 - 10.2 L/100km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 4 Series Convertible

The BMW 4 Series Convertible blends coupe-like elegance with open-top drama, its sleek profile and distinctive grille demanding attention whether the roof’s up or down. Behind the wheel it serves up taut handling and a refined ride, making it a rewarding choice for drivers who want sporty character without sacrificing everyday comfort — and yes, it looks spectacular when you drop the top.

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Reviews BMW 4 Series Convertible

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Porsche 911 Coupe

The Porsche 911 Coupe remains the iconic sports car you buy when you want a thrilling weekend weapon that still behaves like a civilized companion during the weekdays. Its classic silhouette and razor‑sharp handling deliver a grin-inducing drive every time, while the polished interior and intuitive controls remind you this is a car built for drivers, not just headlines.

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Reviews Porsche 911 Coupe

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Costs and Consumption
Price
52,600 - 97,800 £
Price
125,800 - 301,000 £
Consumption L/100km
5.2 - 10.2 L/100km
Consumption L/100km
10.3 - 13.8 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
233 - 312 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Coupe
Seats
4
Seats
2
Doors
-
Doors
-
Curb weight
1,765 - 2,055 kg
Curb weight
1,536 - 1,815 kg
Trunk capacity
385 L
Trunk capacity
373 L
Length
-
Length
-
Width
1,852 - 1,887 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
345 - 420 kg
Payload
228 - 310 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
184 - 530 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
2.5 - 4.5 s
Max Speed
-
Max Speed
-
Torque
300 - 700 Nm
Torque
450 - 800 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
135 - 390 kW
Power kW
290 - 523 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,024 - 2,025
Model Year
2,024 - 2,026
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
G
Brand
BMW
Brand
Porsche
What drive types are available for the BMW 4 Series Convertible?

The BMW 4 Series Convertible is available as 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.