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BMW 4 Series Convertible vs Mercedes C Class Sedan comparison

Compare performance (530 HP vs 680 HP), boot space and price (52,100 £ vs 41,300 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or Mercedes C Class Sedan?

BMW 4 Series Convertible vs Mercedes C Class Sedan: Key differences

BMW 4 Series Convertible

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Mercedes C Class Sedan

  • clearly cheaper
  • noticeably more power
  • moderately more efficient
  • very slightly quicker 0–100 km/h
  • only slightly lighter
  • slightly more trunk space
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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.

Mercedes C Class Sedan is clearly cheaper – starting at 41,300 £ , while the BMW 4 Series Convertible costs 52,100 £ . That’s a price difference of around 10,789 £.

Fuel consumption also shows a difference: the Mercedes C Class Sedan uses 4.5 L/100km and is moderately more efficient than the BMW 4 Series Convertible with 5.2 L/100km. The difference is about 0.7 L/100km.

C Class Sedan

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 Mercedes C Class Sedan offers noticeably more power – delivering 680 HP compared to 530 HP. That’s roughly 150 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes C Class Sedan is very slightly quicker – completing the sprint in 3.4 s, while the BMW 4 Series Convertible takes 3.7 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Mercedes C Class Sedan delivers noticeably more torque with 1,020 Nm compared to 700 Nm. That’s about 320 Nm more.

4 Series Convertible

Space and Everyday Use:

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

Seats: Mercedes C Class Sedan offers more seats – 5 vs 4.

In terms of curb weight, Mercedes C Class Sedan is only slightly lighter – 1,695 kg compared to 1,765 kg. The difference is around 70 kg.

Looking at boot space, the Mercedes C Class Sedan offers slightly more boot space – 455 L compared to 385 L. That’s a difference of about 70 L.

When it comes to payload, the Mercedes C Class Sedan carries noticeably more – 570 kg compared to 420 kg. That’s a difference of about 150 kg.

Who wins the race in the data check?

The Mercedes C Class Sedan 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 £41,300
C Class Sedan

Mercedes C Class Sedan

  • Engine Type : Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 183 - 680 HP
  • Consumption L/100km : 4.5 - 9 L/100km
  • Electric Range : 11 km
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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

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Mercedes C Class Sedan

The Mercedes C‑Class is the compact executive that dresses like it owns the boulevard, with an interior that blends modern elegance and plush comfort to make everyday driving feel unexpectedly special. On the road it pairs poise with a hint of cheeky agility, rewarding drivers who want refinement without forfeiting a touch of fun — and yes, it still looks great in the driveway.

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Reviews Mercedes C Class Sedan

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BMW 4 Series Convertible
Mercedes C Class Sedan

Costs and Consumption
Price
52,100 - 96,600 £
Price
41,300 - 103,400 £
Consumption L/100km
5.2 - 10.2 L/100km
Consumption L/100km
4.5 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
119 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Sedan
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,765 - 2,055 kg
Curb weight
1,695 - 2,165 kg
Trunk capacity
385 L
Trunk capacity
455 L
Length
-
Length
-
Width
1,852 - 1,887 mm
Width
1,820 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
345 - 420 kg
Payload
485 - 570 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
184 - 530 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
-
Max Speed
-
Torque
300 - 700 Nm
Torque
250 - 1,020 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
135 - 390 kW
Power kW
135 - 500 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
1,496 - 1,999 cm3

General
Model Year
2,024 - 2,025
Model Year
2,024 - 2,025
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
E, D, G
Brand
BMW
Brand
Mercedes-Benz
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.