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BMW Z4 vs Porsche 911 Coupe comparison

Compare performance (340 HP vs 711 HP), boot space and price (43,500 £ vs 125,800 £ ) at a glance. Find out which car is the better choice for you – BMW Z4 or Porsche 911 Coupe?

BMW Z4 vs Porsche 911 Coupe: Key differences

BMW Z4

4.4 (1 Reviews)
rate
  • considerably cheaper
  • substantially more efficient
  • marginally lighter
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Porsche 911 Coupe

  • clearly more power
  • clearly quicker 0–100 km/h
  • 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

Z4

Costs and Efficiency:

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

BMW Z4 is considerably cheaper – starting at 43,500 £ , while the Porsche 911 Coupe costs 125,800 £ . That’s a price difference of around 82,371 £.

Fuel consumption also shows a difference: the BMW Z4 uses 6.9 L/100km and is substantially more efficient than the Porsche 911 Coupe with 10.3 L/100km. The difference is about 3.4 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 clearly more power – delivering 711 HP compared to 340 HP. That’s roughly 371 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Coupe is clearly quicker – completing the sprint in 2.5 s, while the BMW Z4 takes 4.5 s. That’s about 2 s quicker.

There’s also a difference in torque: the Porsche 911 Coupe delivers noticeably more torque with 800 Nm compared to 500 Nm. That’s about 300 Nm more.

Z4

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 2 people.

In terms of curb weight, BMW Z4 is marginally lighter – 1,510 kg compared to 1,536 kg. The difference is around 26 kg.

Looking at boot space, the Porsche 911 Coupe offers clearly more boot space – 373 L compared to 281 L. That’s a difference of about 92 L.

When it comes to payload, the Porsche 911 Coupe carries markedly more – 310 kg compared to 235 kg. That’s a difference of about 75 kg.

Who wins the race in the data check?

The Porsche 911 Coupe is narrowly 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 £125,800
911 Coupe

Porsche 911 Coupe

  • Engine Type : Petrol, Full Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 394 - 711 HP
  • Consumption L/100km : 10.3 - 13.8 L/100km
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BMW Z4
Porsche 911 Coupe

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW Z4

The BMW Z4 is a taut, road-hugging roadster that pairs elegant, low-slung styling with a roof you can drop on a sunny whim, delivering that pure, wind-in-your-hair driving thrill few cars manage to match. It’s an ideal weekend companion for drivers who prefer engagement over practicality — bring good shoes rather than a lot of luggage, and you’ll get a grin every time you turn the wheel.

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P90479471_highRes_bmw-z4-m40i-09-2022

Reviews BMW Z4

4.4 (1 Reviews)
rate
Maingard
26 Apr 2026, 13:19:10

Responsive car, very high-performing, very agile in corners.

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

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

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

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BMW Z4
Porsche 911 Coupe

Costs and Consumption
Price
43,500 - 65,300 £
Price
125,800 - 301,000 £
Consumption L/100km
6.9 - 8.5 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
157 - 191 g/km
co2
233 - 312 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Coupe
Seats
2
Seats
2
Doors
-
Doors
-
Curb weight
1,510 - 1,640 kg
Curb weight
1,536 - 1,815 kg
Trunk capacity
281 L
Trunk capacity
373 L
Length
-
Length
-
Width
1,864 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
215 - 235 kg
Payload
228 - 310 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Petrol, Full Hybrid
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
197 - 340 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
4.5 - 6.8 s
Acceleration 0-100km/h
2.5 - 4.5 s
Max Speed
-
Max Speed
-
Torque
320 - 500 Nm
Torque
450 - 800 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
145 - 250 kW
Power kW
290 - 523 kW
Engine capacity
1,998 - 2,998 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,026
CO2 Efficiency Class
F, G
CO2 Efficiency Class
G
Brand
BMW
Brand
Porsche
Is the BMW Z4 offered with different drivetrains?

The BMW Z4 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.