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Mercedes C Class Sedan vs Porsche 911 Coupe comparison

Compare performance (680 HP vs 711 HP), boot space and price (41,300 £ vs 125,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes C Class Sedan or Porsche 911 Coupe?

Mercedes C Class Sedan vs Porsche 911 Coupe: Key differences

Mercedes C Class Sedan

  • substantially cheaper
  • significantly more efficient
  • slightly more trunk space
details

Porsche 911 Coupe

  • marginally more power
  • visibly quicker 0–100 km/h
  • slightly lighter
details

By Achim Sedelmaier

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

C Class Sedan

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Mercedes C Class Sedan is substantially cheaper – starting at 41,300 £ , while the Porsche 911 Coupe costs 125,800 £ . That’s a price difference of around 84,503 £.

Fuel consumption also shows a difference: the Mercedes C Class Sedan uses 4.5 L/100km and is significantly more efficient than the Porsche 911 Coupe with 10.3 L/100km. The difference is about 5.8 L/100km.

911 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 Porsche 911 Coupe offers marginally more power – delivering 711 HP compared to 680 HP. That’s roughly 31 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Coupe is visibly quicker – completing the sprint in 2.5 s, while the Mercedes C Class Sedan takes 3.4 s. That’s about 0.9 s quicker.

There’s also a difference in torque: the Mercedes C Class Sedan delivers visibly more torque with 1,020 Nm compared to 800 Nm. That’s about 220 Nm more.

C Class Sedan

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 Sedan offers more seats – 5 vs 2.

In terms of curb weight, Porsche 911 Coupe is slightly lighter – 1,536 kg compared to 1,695 kg. The difference is around 159 kg.

Looking at boot space, the Mercedes C Class Sedan offers slightly more boot space – 455 L compared to 373 L. That’s a difference of about 82 L.

When it comes to payload, the Mercedes C Class Sedan carries significantly more – 570 kg compared to 310 kg. That’s a difference of about 260 kg.

Who wins the race in the data check?

The Mercedes C Class Sedan stands well ahead of its rival 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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Mercedes C Class Sedan
Porsche 911 Coupe

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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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Porsche 911 Coupe

The Porsche 911 Coupe remains the iconic sports car you buy when you want a thrilling weekend weapon that still behaves like a civilized companion during the weekdays. Its classic silhouette and razor‑sharp handling deliver a grin-inducing drive every time, while the polished interior and intuitive controls remind you this is a car built for drivers, not just headlines.

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Reviews Porsche 911 Coupe

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Mercedes C Class Sedan
Porsche 911 Coupe

Costs and Consumption
Price
41,300 - 103,400 £
Price
125,800 - 301,000 £
Consumption L/100km
4.5 - 9 L/100km
Consumption L/100km
10.3 - 13.8 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
11 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
119 - 205 g/km
co2
233 - 312 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
-
Curb weight
1,695 - 2,165 kg
Curb weight
1,536 - 1,815 kg
Trunk capacity
455 L
Trunk capacity
373 L
Length
-
Length
-
Width
1,820 - 1,900 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 570 kg
Payload
228 - 310 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
183 - 680 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.4 - 8.6 s
Acceleration 0-100km/h
2.5 - 4.5 s
Max Speed
-
Max Speed
-
Torque
250 - 1,020 Nm
Torque
450 - 800 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
135 - 500 kW
Power kW
290 - 523 kW
Engine capacity
1,496 - 1,999 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,024 - 2,025
Model Year
2,024 - 2,026
CO2 Efficiency Class
E, D, G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Porsche
What drivetrain options does the Mercedes C Class Sedan have?

The Mercedes C Class Sedan 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.