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BMW 8 Series Convertible vs Mazda MX-5 Coupe comparison

Compare performance (625 HP vs 132 HP), boot space and price (99,400 £ vs 31,400 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Mazda MX-5 Coupe?

BMW 8 Series Convertible vs Mazda MX-5 Coupe: Key differences

BMW 8 Series Convertible

  • substantially more power
  • significantly quicker 0–100 km/h
  • considerably more trunk space
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Mazda MX-5 Coupe

  • clearly cheaper
  • slightly more efficient
  • substantially lighter
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By Achim Sedelmaier

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 MX-5 Coupe is clearly cheaper – starting at 31,400 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 68,066 £.

Fuel consumption also shows a difference: the Mazda MX-5 Coupe uses 6.2 L/100km and is slightly more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 0.7 L/100km.

MX-5 Coupe

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the BMW 8 Series Convertible offers substantially more power – delivering 625 HP compared to 132 HP. That’s roughly 493 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is significantly quicker – completing the sprint in 3.3 s, while the Mazda MX-5 Coupe takes 8.6 s. That’s about 5.3 s quicker.

There’s also a difference in torque: the BMW 8 Series Convertible delivers substantially more torque with 750 Nm compared to 152 Nm. That’s about 598 Nm more.

8 Series Convertible

Space and Everyday Use:

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

Seats: BMW 8 Series Convertible offers more seats – 4 vs 2.

In terms of curb weight, Mazda MX-5 Coupe is substantially lighter – 1,114 kg compared to 1,915 kg. The difference is around 801 kg.

Looking at boot space, the BMW 8 Series Convertible offers considerably more boot space – 350 L compared to 127 L. That’s a difference of about 223 L.

When it comes to payload, the BMW 8 Series Convertible carries clearly more – 425 kg compared to 166 kg. That’s a difference of about 259 kg.

Who wins the race in the data check?

The BMW 8 Series Convertible 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 £99,400
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
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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
P90343979_highRes_the-new-bmw-m850i-xd

Reviews BMW 8 Series Convertible

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

Mazda MX-5 Coupe

The Mazda MX-5 is a delightfully pure driver's car, wrapped in a compact package and tuned to make steering inputs feel like a conversation rather than a chore. It won’t overwhelm you with gadgetry, but what it delivers—nimble handling, instant feedback and an honest grin every time you drive—makes it a brilliant choice for anyone who values fun over flash.

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2023_mazda_mx-5_portugal_act_003_highres
2023_mazda_mx-5_portugal_act_001_highres

Reviews Mazda MX-5 Coupe

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Costs and Consumption
Price
99,400 - 165,800 £
Price
31,400 - 36,700 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
6.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
140 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Coupe
Seats
4
Seats
2
Doors
2
Doors
-
Curb weight
1,915 - 2,125 kg
Curb weight
1,114 kg
Trunk capacity
350 L
Trunk capacity
127 L
Length
4,851 - 4,867 mm
Length
-
Width
1,902 - 1,907 mm
Width
1,735 mm
Height
1,345 - 1,353 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
166 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol
Transmission
Automatic
Transmission
Manuel
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
333 - 625 HP
Power HP
132 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
8.6 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
152 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
245 - 460 kW
Power kW
97 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
1,496 cm3

General
Model Year
2024
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
E
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.