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BMW 4 Series Convertible vs Mazda 6 Saloon comparison

Compare performance (530 HP vs 258 HP), boot space and price (52,600 £ vs 38,500 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or Mazda 6 Saloon?

BMW 4 Series Convertible vs Mazda 6 Saloon: Key differences

BMW 4 Series Convertible

  • substantially more power
  • considerably quicker 0–100 km/h
  • moderately lighter
  • moderately more trunk space
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Mazda 6 Saloon

  • visibly cheaper
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By Achim Sedelmaier

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

4 Series Convertible

Costs and Efficiency:

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

Mazda 6 Saloon is visibly cheaper – starting at 38,500 £ , while the BMW 4 Series Convertible costs 52,600 £ . That’s a price difference of around 14,143 £.

6 Saloon

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 BMW 4 Series Convertible offers substantially more power – delivering 530 HP compared to 258 HP. That’s roughly 272 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 4 Series Convertible is considerably quicker – completing the sprint in 3.7 s, while the Mazda 6 Saloon takes 7.6 s. That’s about 3.9 s quicker.

There’s also a difference in torque: the BMW 4 Series Convertible delivers substantially more torque with 700 Nm compared to 320 Nm. That’s about 380 Nm more.

4 Series Convertible

Space and Everyday Use:

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

Seats: Mazda 6 Saloon offers more seats – 5 vs 4.

In terms of curb weight, BMW 4 Series Convertible is moderately lighter – 1,765 kg compared to 2,027 kg. The difference is around 262 kg.

Looking at boot space, the BMW 4 Series Convertible offers moderately more boot space – 385 L compared to 336 L. That’s a difference of about 49 L.

When it comes to payload, the BMW 4 Series Convertible carries moderately more – 420 kg compared to 360 kg. That’s a difference of about 60 kg.

Who wins the race in the data check?

The BMW 4 Series Convertible holds a decisive overall lead 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 £52,600
4 Series Convertible

BMW 4 Series Convertible

  • Engine Type Diesel MHEV, Petrol, Petrol MHEV
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 184 - 530 HP
  • Consumption L/100km 5.2 - 10.2 L/100km
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Frequently compared as well

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 4 Series Convertible

The BMW 4 Series Convertible blends coupe-like elegance with open-top drama, its sleek profile and distinctive grille demanding attention whether the roof’s up or down. Behind the wheel it serves up taut handling and a refined ride, making it a rewarding choice for drivers who want sporty character without sacrificing everyday comfort — and yes, it looks spectacular when you drop the top.

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Reviews BMW 4 Series Convertible

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

Mazda 6 Saloon

The Mazda6 saloon feels like the sensible yet stylish choice for buyers who want a car that drives with poise and looks sharper than its badge suggests. It mixes engaging handling, a refined cabin and everyday practicality without shouting for attention — perfect for those who prefer understated class with a wink.

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Reviews Mazda 6 Saloon

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

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Costs and Consumption
Price
52,600 - 97,800 £
Price
38,500 - 41,600 £
Consumption L/100km
5.2 - 10.2 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
16.5 - 16.6 kWh/100km
Electric Range
-
Electric Range
479 - 552 km
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Sedan
Seats
4
Seats
5
Doors
-
Doors
5
Curb weight
1,765 - 2,055 kg
Curb weight
2,027 - 2,028 kg
Trunk capacity
385 L
Trunk capacity
336 L
Length
-
Length
4,921 mm
Width
1,852 - 1,887 mm
Width
1,890 mm
Height
-
Height
1,491 mm
Max trunk capacity
-
Max trunk capacity
1,074 L
Payload
345 - 420 kg
Payload
359 - 360 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
184 - 530 HP
Power HP
245 - 258 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
7.6 - 7.8 s
Max Speed
-
Max Speed
175 km/h
Torque
300 - 700 Nm
Torque
320 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
135 - 390 kW
Power kW
180 - 190 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2025
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
A
Brand
BMW
Brand
Mazda
What drive types are available for the BMW 4 Series Convertible?

The BMW 4 Series Convertible is available as 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.