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BMW 8 Series Convertible vs BMW Z4 comparison
Compare performance (625 HP vs 340 HP), boot space and price (99,400 £ vs 43,500 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or BMW Z4?
BMW 8 Series Convertible vs BMW Z4: Key differences
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
8 Series Convertible
Costs and Efficiency:
Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
BMW Z4 is considerably cheaper – starting at 43,500 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 55,971 £.
Both cars consume an average of 6.9 L/100km – no difference here.
Z4
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 8 Series Convertible offers clearly more power – delivering 625 HP compared to 340 HP. That’s roughly 285 HP more horsepower.
When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is noticeably quicker – completing the sprint in 3.3 s, while the BMW Z4 takes 4.5 s. That’s about 1.2 s quicker.
There’s also a difference in torque: the BMW 8 Series Convertible delivers noticeably more torque with 750 Nm compared to 500 Nm. That’s about 250 Nm more.
8 Series Convertible
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 8 Series Convertible offers more seats – 4 vs 2.
In terms of curb weight, BMW Z4 is noticeably lighter – 1,510 kg compared to 1,915 kg. The difference is around 405 kg.
Looking at boot space, the BMW 8 Series Convertible offers moderately more boot space – 350 L compared to 281 L. That’s a difference of about 69 L.
When it comes to payload, the BMW 8 Series Convertible carries significantly more – 425 kg compared to 235 kg. That’s a difference of about 190 kg.
Who wins the race in the data check?
The BMW 8 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 £99,400
BMW 8 Series Convertible
BMW 8 Series Convertible
BMW Z4
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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BMW 8 Series Convertible
The BMW 8 Series Convertible is a head-turning grand tourer that drops its roof with the kind of theatrical flourish you expect from a modern Bavarian showboat. It wraps occupants in sumptuous materials and driver-focused polish, offering effortless long-distance comfort and just enough drama to make every arrival feel like an occasion.
details
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.
details
BMW 8 Series Convertible
BMW Z4
Costs and Consumption |
|
|---|---|
|
Price
99,400 - 165,800 £
|
Price
43,500 - 65,300 £
|
|
Consumption L/100km
6.9 - 11.2 L/100km
|
Consumption L/100km
6.9 - 8.5 L/100km
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
-
|
|
Electric Range
-
|
Electric Range
-
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
180 - 255 g/km
|
co2
157 - 191 g/km
|
|
Fuel tank capacity
66 - 68 L
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
Convertible
|
Body Type
Roadster
|
|
Seats
4
|
Seats
2
|
|
Doors
2
|
Doors
-
|
|
Curb weight
1,915 - 2,125 kg
|
Curb weight
1,510 - 1,640 kg
|
|
Trunk capacity
350 L
|
Trunk capacity
281 L
|
|
Length
4,851 - 4,867 mm
|
Length
-
|
|
Width
1,902 - 1,907 mm
|
Width
1,864 mm
|
|
Height
1,345 - 1,353 mm
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
340 - 425 kg
|
Payload
215 - 235 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Diesel MHEV, Petrol
|
Engine Type
Petrol
|
|
Transmission
Automatic
|
Transmission
Manuel, Automatic
|
|
Transmission Detail
Automatic Gearbox
|
Transmission Detail
Manual Gearbox, Automatic Gearbox
|
|
Drive Type
All-Wheel Drive, Rear-Wheel Drive
|
Drive Type
Rear-Wheel Drive
|
|
Power HP
333 - 625 HP
|
Power HP
197 - 340 HP
|
|
Acceleration 0-100km/h
3.3 - 5.5 s
|
Acceleration 0-100km/h
4.5 - 6.8 s
|
|
Max Speed
250 km/h
|
Max Speed
-
|
|
Torque
500 - 750 Nm
|
Torque
320 - 500 Nm
|
|
Number of Cylinders
6 - 8
|
Number of Cylinders
4 - 6
|
|
Power kW
245 - 460 kW
|
Power kW
145 - 250 kW
|
|
Engine capacity
2,993 - 4,395 cm3
|
Engine capacity
1,998 - 2,998 cm3
|
General |
|
|---|---|
|
Model Year
2024
|
Model Year
2,025 - 2,026
|
|
CO2 Efficiency Class
G
|
CO2 Efficiency Class
F, G
|
|
Brand
BMW
|
Brand
BMW
|
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.