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BMW i7 vs Porsche 911 Convertible comparison

Compare performance (659 HP vs 711 HP), boot space and price (99,300 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – BMW i7 or Porsche 911 Convertible?

BMW i7 vs Porsche 911 Convertible: Key differences

BMW i7

  • clearly cheaper
  • visibly more trunk space
details

Porsche 911 Convertible

  • only slightly more power
  • significantly quicker 0–100 km/h
  • substantially lighter
details

By Achim Sedelmaier

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

i7

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 i7 is clearly cheaper – starting at 99,300 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 38,658 £.

911 Convertible

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 Convertible offers only slightly more power – delivering 711 HP compared to 659 HP. That’s roughly 52 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is significantly quicker – completing the sprint in 2.6 s, while the BMW i7 takes 3.7 s. That’s about 1.1 s quicker.

There’s also a difference in torque: the BMW i7 delivers markedly more torque with 1,100 Nm compared to 800 Nm. That’s about 300 Nm more.

i7

Space and Everyday Use:

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

Seats: BMW i7 offers more seats – 5 vs 4.

In terms of curb weight, Porsche 911 Convertible is substantially lighter – 1,572 kg compared to 2,595 kg. The difference is around 1,023 kg.

Looking at boot space, the BMW i7 offers visibly more boot space – 500 L compared to 373 L. That’s a difference of about 127 L.

When it comes to payload, the BMW i7 carries noticeably more – 535 kg compared to 345 kg. That’s a difference of about 190 kg.

Who wins the race in the data check?

The BMW i7 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 £99,300
i7

BMW i7

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 455 - 659 HP
  • Consumption kWh/100km 18.5 - 20.8 kWh/100km
  • Electric Range 559 - 624 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW i7

The BMW i7 is a quietly imposing electric limousine that wraps advanced tech and traditional Bavarian comfort in a futuristic skin. For buyers after serene luxury with a mischievous streak, it pampers rear-seat occupants while reminding the driver that BMW still knows how to make a big car feel alive.

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Reviews BMW i7

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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

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Porsche 911 Convertible

Costs and Consumption
Price
99,300 - 157,200 £
Price
138,000 - 244,500 £
Consumption L/100km
-
Consumption L/100km
10.5 - 13.7 L/100km
Consumption kWh/100km
18.5 - 20.8 kWh/100km
Consumption kWh/100km
-
Electric Range
559 - 624 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
2,595 - 2,770 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
500 L
Trunk capacity
163 - 373 L
Length
-
Length
-
Width
1,950 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, 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
455 - 659 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.7 - 5.5 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
-
Max Speed
-
Torque
650 - 1,100 Nm
Torque
450 - 800 Nm
Number of Cylinders
-
Number of Cylinders
6
Power kW
335 - 485 kW
Power kW
290 - 523 kW
Engine capacity
-
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,022 - 2,023
Model Year
2,024 - 2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
BMW
Brand
Porsche
Is the BMW i7 offered with different drivetrains?

The BMW i7 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.