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BMW 8 Series Convertible vs Mazda CX-5 comparison

Compare performance (625 HP vs 141 HP), boot space and price (99,400 £ vs 30,000 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Mazda CX-5?

BMW 8 Series Convertible vs Mazda CX-5: Key differences

BMW 8 Series Convertible

  • clearly more power
  • only slightly more efficient
  • clearly quicker 0–100 km/h

Mazda CX-5

4.6 (7 Reviews)
rate
  • significantly cheaper
  • slightly lighter
  • markedly more trunk space

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

8 Series Convertible

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.

Mazda CX-5 is significantly cheaper – starting at 30,000 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 69,437 £.

Fuel consumption also shows a difference: the BMW 8 Series Convertible uses 6.9 L/100km and is only slightly more efficient than the Mazda CX-5 with 7 L/100km. The difference is about 0.1 L/100km.

CX-5

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 141 HP. That’s roughly 484 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is clearly quicker – completing the sprint in 3.3 s, while the Mazda CX-5 takes 10.5 s. That’s about 7.2 s quicker.

Looking at top speed, the BMW 8 Series Convertible is visibly faster – reaching 250 km/h, while the Mazda CX-5 tops out at 195 km/h. The difference is around 55 km/h.

There’s also a difference in torque: the BMW 8 Series Convertible delivers considerably more torque with 750 Nm compared to 238 Nm. That’s about 512 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: Mazda CX-5 offers more seats – 5 vs 4.

In terms of curb weight, Mazda CX-5 is slightly lighter – 1,629 kg compared to 1,915 kg. The difference is around 286 kg.

Looking at boot space, the Mazda CX-5 offers markedly more boot space – 583 L compared to 350 L. That’s a difference of about 233 L.

When it comes to payload, the Mazda CX-5 carries markedly more – 601 kg compared to 425 kg. That’s a difference of about 176 kg.

Who wins the race in the data check?

The BMW 8 Series Convertible is decisively 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 £99,400
8 Series Convertible

BMW 8 Series Convertible

  • Engine Type : Diesel MHEV, Petrol
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 333 - 625 HP
  • Consumption L/100km : 6.9 - 11.2 L/100km
details

Frequently compared as well

Mazda CX-5
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BMW 8 Series Convertible
Mazda CX-5

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

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P90343983_highRes_the-new-bmw-m850i-xd
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Reviews BMW 8 Series Convertible

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

Mazda CX-5

The Mazda CX-5 blends elegant, athletic styling with a surprisingly engaging driving character, turning routine trips into small, satisfying adventures. Inside it feels thoughtfully built and comfortable, offering sensible practicality and a premium feel that punches above its price.

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Reviews Mazda CX-5

4.6 (7 Reviews)
rate
Bengt
25 Jan 2026, 14:05:09

I've owned several Volvos, but I drive a Mazda now and would never switch back.

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

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BMW 8 Series Convertible
Mazda CX-5

Costs and Consumption
Price
99,400 - 165,800 £
Price
30,000 - 39,500 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
7 - 7.4 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
157 - 168 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
56 - 58 L

Dimensions and Body
Body Type
Convertible
Body Type
SUV
Seats
4
Seats
5
Doors
2
Doors
5
Curb weight
1,915 - 2,125 kg
Curb weight
1,629 - 1,671 kg
Trunk capacity
350 L
Trunk capacity
466 - 583 L
Length
4,851 - 4,867 mm
Length
4,690 mm
Width
1,902 - 1,907 mm
Width
1,860 mm
Height
1,345 - 1,353 mm
Height
1,695 mm
Max trunk capacity
-
Max trunk capacity
2,019 L
Payload
340 - 425 kg
Payload
601 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
333 - 625 HP
Power HP
141 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
10.5 - 10.9 s
Max Speed
250 km/h
Max Speed
195 km/h
Torque
500 - 750 Nm
Torque
238 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
245 - 460 kW
Power kW
104 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
2,488 cm3

General
Model Year
2,024
Model Year
2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
F
Brand
BMW
Brand
Mazda
What drivetrain options does the BMW 8 Series Convertible have?

Available configurations include All-Wheel Drive or 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.