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Mercedes C-Class Saloon vs Porsche Cayenne comparison

Compare performance (680 HP vs 1,156 HP), boot space and price (41,300 £ vs 90,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes C-Class Saloon or Porsche Cayenne?

Mercedes C-Class Saloon vs Porsche Cayenne: Key differences

Mercedes C-Class Saloon

  • substantially cheaper
  • markedly lighter
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Porsche Cayenne

3.2 (3 Reviews)
rate
  • significantly more power
  • a bit more efficient
  • considerably more electric range
  • visibly quicker 0–100 km/h
  • considerably more trunk space
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By Achim Sedelmaier

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

C-Class Saloon

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes C-Class Saloon is substantially cheaper – starting at 41,300 £ , while the Porsche Cayenne costs 90,200 £ . That’s a price difference of around 48,846 £.

Fuel consumption also shows a difference: the Porsche Cayenne uses 4 L/100km and is a bit more efficient than the Mercedes C-Class Saloon with 4.5 L/100km. The difference is about 0.5 L/100km.

As for electric range, the Porsche Cayenne offers considerably more range – reaching up to 668 km, about 657 km more than the Mercedes C-Class Saloon.

Cayenne

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 Cayenne offers significantly more power – delivering 1,156 HP compared to 680 HP. That’s roughly 476 HP more horsepower.

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

There’s also a difference in torque: the Porsche Cayenne delivers noticeably more torque with 1,500 Nm compared to 1,020 Nm. That’s about 480 Nm more.

C-Class Saloon

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes C-Class Saloon is markedly lighter – 1,695 kg compared to 2,130 kg. The difference is around 435 kg.

Looking at boot space, the Porsche Cayenne offers considerably more boot space – 781 L compared to 455 L. That’s a difference of about 326 L.

When it comes to payload, the Porsche Cayenne carries slightly more – 705 kg compared to 570 kg. That’s a difference of about 135 kg.

Who wins the race in the data check?

The Porsche Cayenne 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 £90,200
Cayenne

Porsche Cayenne

  • Engine Type Petrol, Plugin Hybrid, Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 353 - 1,156 HP
  • Consumption L/100km 4 - 11 L/100km
  • Consumption kWh/100km 18.9 - 20.6 kWh/100km
  • Electric Range 74 - 668 km
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Mercedes C-Class Saloon
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

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View detailed analysis

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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Porsche Cayenne

Few SUVs blend athletic poise and Teutonic precision like the Porsche Cayenne, putting genuine sports‑car feeling into a roomy, everyday package. If you want a practical family hauler that still makes you grin every time you merge, the Cayenne delivers — turning errands into an excuse for a spirited drive.

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Reviews Porsche Cayenne

3.2 (3 Reviews)
rate

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Mercedes C-Class Saloon
Porsche Cayenne

Costs and Consumption
Price
41,300 - 103,400 £
Price
90,200 - 144,400 £
Consumption L/100km
4.5 - 9 L/100km
Consumption L/100km
4 - 11 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
18.9 - 20.6 kWh/100km
Electric Range
11 km
Electric Range
74 - 668 km
Battery Capacity
-
Battery Capacity
-
co2
119 - 205 g/km
co2
0 - 249 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
4 - 5
Doors
-
Doors
-
Curb weight
1,695 - 2,165 kg
Curb weight
2,130 - 2,725 kg
Trunk capacity
280 - 455 L
Trunk capacity
434 - 781 L
Length
-
Length
-
Width
1,820 - 1,900 mm
Width
1,980 - 1,983 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 570 kg
Payload
525 - 705 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Petrol, Plugin Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
183 - 680 HP
Power HP
353 - 1,156 HP
Acceleration 0-100km/h
3.4 - 8.6 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
-
Max Speed
-
Torque
250 - 1,020 Nm
Torque
500 - 1,500 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
135 - 500 kW
Power kW
260 - 850 kW
Engine capacity
1,496 - 1,999 cm3
Engine capacity
2,995 cm3

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

The Mercedes C-Class Saloon 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.