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Porsche Cayenne vs Mercedes GLS comparison

Compare performance (1,156 HP vs 404 HP), boot space and price (90,200 £ vs 92,700 £ ) at a glance. Find out which car is the better choice for you – Porsche Cayenne or Mercedes GLS?

Porsche Cayenne vs Mercedes GLS: Key differences

Porsche Cayenne

3.2 (3 Reviews)
rate
  • barely cheaper
  • considerably more power
  • considerably more efficient
  • clearly quicker 0–100 km/h
  • markedly lighter
  • clearly more trunk space
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Mercedes GLS

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By Achim Sedelmaier

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

Cayenne

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Porsche Cayenne is barely cheaper – starting at 90,200 £ , while the Mercedes GLS costs 92,700 £ . That’s a price difference of around 2,491 £.

Fuel consumption also shows a difference: the Porsche Cayenne uses 4 L/100km and is considerably more efficient than the Mercedes GLS with 7.9 L/100km. The difference is about 3.9 L/100km.

GLS

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 considerably more power – delivering 1,156 HP compared to 404 HP. That’s roughly 752 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayenne is clearly quicker – completing the sprint in 2.5 s, while the Mercedes GLS takes 5.6 s. That’s about 3.1 s quicker.

There’s also a difference in torque: the Porsche Cayenne delivers clearly more torque with 1,500 Nm compared to 750 Nm. That’s about 750 Nm more.

Cayenne

Space and Everyday Use:

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

Seats: Mercedes GLS offers more seats – 7 vs 5.

In terms of curb weight, Porsche Cayenne is markedly lighter – 2,130 kg compared to 2,580 kg. The difference is around 450 kg.

Looking at boot space, the Porsche Cayenne offers clearly more boot space – 781 L compared to 355 L. That’s a difference of about 426 L.

When it comes to payload, the Mercedes GLS carries a bit more – 820 kg compared to 705 kg. That’s a difference of about 115 kg.

Who wins the race in the data check?

The Porsche Cayenne 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 £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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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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

No reviews yet. Share your experience and help others decide.

Mercedes GLS

The GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.

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Reviews Mercedes GLS

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Mercedes GLS

Costs and Consumption
Price
90,200 - 144,400 £
Price
92,700 - 104,600 £
Consumption L/100km
4 - 11 L/100km
Consumption L/100km
7.9 - 9.9 L/100km
Consumption kWh/100km
18.9 - 20.6 kWh/100km
Consumption kWh/100km
-
Electric Range
74 - 668 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 - 249 g/km
co2
206 - 226 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
4 - 5
Seats
7
Doors
-
Doors
-
Curb weight
2,130 - 2,725 kg
Curb weight
2,580 - 2,670 kg
Trunk capacity
434 - 781 L
Trunk capacity
355 L
Length
-
Length
-
Width
1,980 - 1,983 mm
Width
1,956 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
525 - 705 kg
Payload
810 - 820 kg

Engine and Performance
Engine Type
Petrol, Plugin Hybrid, Electric
Engine Type
Petrol MHEV, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
353 - 1,156 HP
Power HP
336 - 404 HP
Acceleration 0-100km/h
2.5 - 6 s
Acceleration 0-100km/h
5.6 - 6.2 s
Max Speed
-
Max Speed
-
Torque
500 - 1,500 Nm
Torque
560 - 750 Nm
Number of Cylinders
6
Number of Cylinders
6
Power kW
260 - 850 kW
Power kW
247 - 297 kW
Engine capacity
2,995 cm3
Engine capacity
2,989 - 2,999 cm3

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

Available configurations include 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.