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BMW 4 Series Convertible vs Porsche Boxster comparison

Compare performance (530 HP vs 500 HP), boot space and price (52,600 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or Porsche Boxster?

BMW 4 Series Convertible vs Porsche Boxster: Key differences

BMW 4 Series Convertible

  • considerably cheaper
  • only slightly more power
  • substantially more efficient
  • considerably more trunk space
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Porsche Boxster

  • only slightly quicker 0–100 km/h
  • somewhat 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 considerably cheaper – starting at 52,600 £ , while the Porsche Boxster costs 136,000 £ . That’s a price difference of around 83,400 £.

Fuel consumption also shows a difference: the BMW 4 Series Convertible uses 5.2 L/100km and is substantially more efficient than the Porsche Boxster with 12.7 L/100km. The difference is about 7.5 L/100km.

Boxster

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 BMW 4 Series Convertible offers only slightly more power – delivering 530 HP compared to 500 HP. That’s roughly 30 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Boxster is only slightly quicker – completing the sprint in 3.4 s, while the BMW 4 Series Convertible takes 3.7 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the BMW 4 Series Convertible delivers markedly more torque with 700 Nm compared to 450 Nm. That’s about 250 Nm more.

4 Series Convertible

Space and Everyday Use:

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

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

In terms of curb weight, Porsche Boxster is somewhat lighter – 1,485 kg compared to 1,765 kg. The difference is around 280 kg.

Looking at boot space, the BMW 4 Series Convertible offers considerably more boot space – 385 L compared to 122 L. That’s a difference of about 263 L.

When it comes to payload, the BMW 4 Series Convertible carries visibly more – 420 kg compared to 270 kg. That’s a difference of about 150 kg.

Who wins the race in the data check?

The BMW 4 Series Convertible is clearly superior 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 £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

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

Porsche Boxster

The Porsche Boxster epitomizes the essence of a pure, open-top driving experience with its mid-engine roadster design. Known for its agile handling and dynamic performance, the Boxster seamlessly blends luxury with thrilling precision on the road. Its unmistakable styling and superior engineering continue to captivate automotive enthusiasts who crave a visceral connection to the art of driving.

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Reviews Porsche Boxster

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

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Costs and Consumption
Price
52,600 - 97,800 £
Price
136,000 £
Consumption L/100km
5.2 - 10.2 L/100km
Consumption L/100km
12.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
288 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Convertible
Body Type
Roadster
Seats
4
Seats
2
Doors
-
Doors
2
Curb weight
1,765 - 2,055 kg
Curb weight
1,485 kg
Trunk capacity
385 L
Trunk capacity
122 L
Length
-
Length
4,418 mm
Width
1,852 - 1,887 mm
Width
1,822 mm
Height
-
Height
1,252 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
345 - 420 kg
Payload
270 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
184 - 530 HP
Power HP
500 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
308 km/h
Torque
300 - 700 Nm
Torque
450 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
135 - 390 kW
Power kW
368 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
3,996 cm3

General
Model Year
2,024 - 2,025
Model Year
2023
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.