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BMW i5 vs Porsche 911 Convertible comparison

Compare performance (601 HP vs 711 HP), boot space and price (60,800 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – BMW i5 or Porsche 911 Convertible?

BMW i5 vs Porsche 911 Convertible: Key differences

BMW i5

4.6 (1 Reviews)
rate
  • considerably cheaper
  • clearly more trunk space
details

Porsche 911 Convertible

  • somewhat more power
  • considerably quicker 0–100 km/h
  • visibly lighter
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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.

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

i5

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.

BMW i5 is considerably cheaper – starting at 60,800 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 77,229 £.

911 Convertible

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 somewhat more power – delivering 711 HP compared to 601 HP. That’s roughly 110 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is considerably quicker – completing the sprint in 2.6 s, while the BMW i5 takes 3.8 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the BMW i5 delivers marginally more torque with 820 Nm compared to 800 Nm. That’s about 20 Nm more.

i5

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 i5 offers more seats – 5 vs 4.

In terms of curb weight, Porsche 911 Convertible is visibly lighter – 1,572 kg compared to 2,195 kg. The difference is around 623 kg.

Looking at boot space, the BMW i5 offers clearly more boot space – 490 L compared to 373 L. That’s a difference of about 117 L.

When it comes to payload, the BMW i5 carries markedly more – 545 kg compared to 345 kg. That’s a difference of about 200 kg.

Who wins the race in the data check?

The BMW i5 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 £60,800
i5

BMW i5

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 340 - 601 HP
  • Consumption kWh/100km 14.7 - 17.1 kWh/100km
  • Electric Range 540 - 627 km
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Porsche 911 Convertible

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW i5

The BMW i5 swaps predictable executive-car manners for a confident electric vibe, marrying refined comfort with surprisingly engaging steering. It’s a practical choice that doesn’t feel dull, offering the kind of clean, premium experience that makes commuting feel like a small indulgence.

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Reviews BMW i5

4.6 (1 Reviews)
rate
Darek
22 Aug 2026, 19:35:54

I also have an Audi Q6 Sportback at home.
When it comes to quality, handling and suspension, I think the BMW i5 (I have the xDrive 40) is two classes higher.
Both cars are new, and the Audi has already spent a total of four weeks in the service.

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

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

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

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BMW i5
Porsche 911 Convertible

Costs and Consumption
Price
60,800 - 85,900 £
Price
138,000 - 244,500 £
Consumption L/100km
-
Consumption L/100km
10.5 - 13.7 L/100km
Consumption kWh/100km
14.7 - 17.1 kWh/100km
Consumption kWh/100km
-
Electric Range
540 - 627 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
237 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
-
Doors
-
Curb weight
2,195 - 2,370 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
490 L
Trunk capacity
163 - 373 L
Length
-
Length
-
Width
1,900 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
525 - 545 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manual, Automatic
Transmission Detail
Reduction 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
340 - 601 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.8 - 6 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
-
Max Speed
-
Torque
430 - 820 Nm
Torque
450 - 800 Nm
Number of Cylinders
-
Number of Cylinders
6
Power kW
250 - 442 kW
Power kW
290 - 523 kW
Engine capacity
-
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,023 - 2,024
Model Year
2,024 - 2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
BMW
Brand
Porsche
Is the BMW i5 offered with different drivetrains?

The BMW i5 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.