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Mercedes S Class vs Porsche Cayenne comparison

Compare performance (635 HP vs 1,156 HP), boot space and price (104,000 £ vs 90,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes S Class or Porsche Cayenne?

Mercedes S Class vs Porsche Cayenne: Key differences

Mercedes S Class

  • significantly more efficient
details

Porsche Cayenne

3.3 (2 Reviews)
rate
  • somewhat cheaper
  • significantly more power
  • significantly more electric range
  • considerably quicker 0–100 km/h
  • very slightly lighter
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By Achim Sedelmaier

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

S Class

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.

Porsche Cayenne is somewhat cheaper – starting at 90,200 £ , while the Mercedes S Class costs 104,000 £ . That’s a price difference of around 13,848 £.

Fuel consumption also shows a difference: the Mercedes S Class uses 2.2 L/100km and is significantly more efficient than the Porsche Cayenne with 4 L/100km. The difference is about 1.8 L/100km.

As for electric range, the Porsche Cayenne offers significantly more range – reaching up to 668 km, about 550 km more than the Mercedes S Class.

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 635 HP. That’s roughly 521 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayenne is considerably quicker – completing the sprint in 2.5 s, while the Mercedes S Class takes 4 s. That’s about 1.5 s quicker.

There’s also a difference in torque: the Porsche Cayenne delivers considerably more torque with 1,500 Nm compared to 850 Nm. That’s about 650 Nm more.

S Class

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, Porsche Cayenne is very slightly lighter – 2,130 kg compared to 2,165 kg. The difference is around 35 kg.

When it comes to payload, the Porsche Cayenne carries only slightly more – 705 kg compared to 660 kg. That’s a difference of about 45 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
details

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Mercedes S Class
Porsche Cayenne

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes S Class

The Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.

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21C0428_003
21C0428_004
21C0613_021
21C0613_037
21C0613_042
21C0613_043

Reviews Mercedes S Class

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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

3.3 (2 Reviews)
rate

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Mercedes S Class
Porsche Cayenne

Costs and Consumption
Price
104,000 - 201,400 £
Price
90,200 - 144,400 £
Consumption L/100km
2.2 - 11 L/100km
Consumption L/100km
4 - 11 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
18.9 - 20.6 kWh/100km
Electric Range
98 - 118 km
Electric Range
74 - 668 km
Battery Capacity
-
Battery Capacity
-
co2
50 - 252 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
2,165 - 2,650 kg
Curb weight
2,130 - 2,725 kg
Trunk capacity
-
Trunk capacity
434 - 781 L
Length
-
Length
-
Width
1,921 mm
Width
1,980 - 1,983 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
420 - 660 kg
Payload
525 - 705 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Engine Type
Petrol, Plugin Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 635 HP
Power HP
353 - 1,156 HP
Acceleration 0-100km/h
4 - 5.7 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
-
Max Speed
-
Torque
560 - 850 Nm
Torque
500 - 1,500 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6
Power kW
247 - 467 kW
Power kW
260 - 850 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
2,995 cm3

General
Model Year
2026
Model Year
2,025 - 2,026
CO2 Efficiency Class
G, B, F
CO2 Efficiency Class
G, B, A
Brand
Mercedes-Benz
Brand
Porsche
Is the Mercedes S Class offered with different drivetrains?

The Mercedes S Class is offered with 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.