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BMW 8 Series Convertible vs Mercedes C-Class Saloon comparison

Compare performance (625 HP vs 680 HP), boot space and price (99,400 £ vs 41,300 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Mercedes C-Class Saloon?

BMW 8 Series Convertible vs Mercedes C-Class Saloon: Key differences

BMW 8 Series Convertible

  • only slightly quicker 0–100 km/h
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Mercedes C-Class Saloon

  • considerably cheaper
  • very slightly more power
  • substantially more efficient
  • moderately lighter
  • visibly more trunk space
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Here’s where it gets real: The technical differences in detail

8 Series Convertible

Costs and Efficiency:

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

Mercedes C-Class Saloon is considerably cheaper – starting at 41,300 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 58,103 £.

Fuel consumption also shows a difference: the Mercedes C-Class Saloon uses 4.5 L/100km and is substantially more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 2.4 L/100km.

C-Class Saloon

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 Mercedes C-Class Saloon offers very slightly more power – delivering 680 HP compared to 625 HP. That’s roughly 55 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is only slightly quicker – completing the sprint in 3.3 s, while the Mercedes C-Class Saloon takes 3.4 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Mercedes C-Class Saloon delivers visibly more torque with 1,020 Nm compared to 750 Nm. That’s about 270 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: Mercedes C-Class Saloon offers more seats – 5 vs 4.

In terms of curb weight, Mercedes C-Class Saloon is moderately lighter – 1,695 kg compared to 1,915 kg. The difference is around 220 kg.

Looking at boot space, the Mercedes C-Class Saloon offers visibly more boot space – 455 L compared to 350 L. That’s a difference of about 105 L.

When it comes to payload, the Mercedes C-Class Saloon carries visibly more – 570 kg compared to 425 kg. That’s a difference of about 145 kg.

Who wins the race in the data check?

The Mercedes C-Class Saloon 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 £41,300
C-Class Saloon

Mercedes C-Class Saloon

  • Engine Type Petrol MHEV, Diesel MHEV, Plug-in 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 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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Reviews BMW 8 Series Convertible

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Mercedes C-Class Saloon

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 Saloon

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BMW 8 Series Convertible
Mercedes C-Class Saloon

Costs and Consumption
Price
99,400 - 165,800 £
Price
41,300 - 103,400 £
Consumption L/100km
6.9 - 11.2 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
180 - 255 g/km
co2
119 - 205 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Sedan
Seats
4
Seats
5
Doors
2
Doors
-
Curb weight
1,915 - 2,125 kg
Curb weight
1,695 - 2,165 kg
Trunk capacity
350 L
Trunk capacity
280 - 455 L
Length
4,851 - 4,867 mm
Length
-
Width
1,902 - 1,907 mm
Width
1,820 - 1,900 mm
Height
1,345 - 1,353 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
485 - 570 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol MHEV, Diesel MHEV, Plug-in Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
333 - 625 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
250 - 1,020 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
245 - 460 kW
Power kW
135 - 500 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
1,496 - 1,999 cm3

General
Model Year
2024
Model Year
2,024 - 2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
E, D, G
Brand
BMW
Brand
Mercedes-Benz
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.