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Porsche Boxster vs BMW i4 comparison

Compare performance (500 HP vs 601 HP), boot space and price (136,000 £ vs 49,900 £ ) at a glance. Find out which car is the better choice for you – Porsche Boxster or BMW i4?

Porsche Boxster vs BMW i4: Key differences

Porsche Boxster

  • only slightly quicker 0–100 km/h
  • markedly lighter
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BMW i4

5 (3 Reviews)
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  • clearly cheaper
  • a bit more power
  • clearly more trunk space
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

Boxster

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

BMW i4 is clearly cheaper – starting at 49,900 £ , while the Porsche Boxster costs 136,000 £ . That’s a price difference of around 86,143 £.

i4

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 BMW i4 offers a bit more power – delivering 601 HP compared to 500 HP. That’s roughly 101 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 i4 takes 3.7 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the BMW i4 delivers significantly more torque with 795 Nm compared to 450 Nm. That’s about 345 Nm more.

Space and Everyday Use:

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

Seats: BMW i4 offers more seats – 5 vs 2.

In terms of curb weight, Porsche Boxster is markedly lighter – 1,485 kg compared to 2,070 kg. The difference is around 585 kg.

Looking at boot space, the BMW i4 offers clearly more boot space – 470 L compared to 122 L. That’s a difference of about 348 L.

When it comes to payload, the BMW i4 carries considerably more – 480 kg compared to 270 kg. That’s a difference of about 210 kg.

Who wins the race in the data check?

The BMW i4 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 £49,900
i4

BMW i4

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 286 - 601 HP
  • Consumption kWh/100km 14.7 - 16.7 kWh/100km
  • Electric Range 514 - 613 km
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Frequently compared as well

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BMW i4

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

BMW i4

The BMW i4 arrives with the poise of a classic Gran Coupé, marrying BMW's playful handling with a sleek, modern interior that makes switching to electric feel like an upgrade rather than a compromise. For buyers who want a practical daily driver that still enjoys a spirited back-road run, the i4 quietly delivers smiles and a surprising dose of driver engagement.

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P90439356_highRes_bmw-i4-m50-9-2021
P90439360_highRes_bmw-i4-m50-9-2021
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Reviews BMW i4

5 (3 Reviews)
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Marco
23 Apr 2026, 14:56:19

Amazing car with enormous torque, equipment and driving experience, at an acceptable fuel consumption.

How do you mainly use this car? (optional): Company car / Business
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Porsche Boxster
BMW i4

Costs and Consumption
Price
136,000 £
Price
49,900 - 63,200 £
Consumption L/100km
12.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
14.7 - 16.7 kWh/100km
Electric Range
-
Electric Range
514 - 613 km
Battery Capacity
-
Battery Capacity
-
co2
288 g/km
co2
0 g/km
Fuel tank capacity
54 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Hatchback
Seats
2
Seats
5
Doors
2
Doors
-
Curb weight
1,485 kg
Curb weight
2,070 - 2,285 kg
Trunk capacity
122 L
Trunk capacity
470 L
Length
4,418 mm
Length
-
Width
1,822 mm
Width
1,852 mm
Height
1,252 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
270 kg
Payload
445 - 480 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
500 HP
Power HP
286 - 601 HP
Acceleration 0-100km/h
3.4 s
Acceleration 0-100km/h
3.7 - 6 s
Max Speed
308 km/h
Max Speed
-
Torque
450 Nm
Torque
400 - 795 Nm
Number of Cylinders
6
Number of Cylinders
-
Power kW
368 kW
Power kW
210 - 442 kW
Engine capacity
3,996 cm3
Engine capacity
-

General
Model Year
2023
Model Year
2,024 - 2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
A
Brand
Porsche
Brand
BMW
Is the Porsche Boxster offered with different drivetrains?

The Porsche Boxster is available as Rear-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.