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Mercedes G Class vs Porsche Cayenne - Differences and prices compared

Compare performance (605 HP vs 1156 HP), boot space and price (106600 £ vs 87000 £ ) at a glance. Find out which car is the better choice for you – Mercedes G Class or Porsche Cayenne?

Mercedes G Class

Porsche Cayenne

1.9 (1 Reviews)
rate

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

G Class

Costs and Efficiency:

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

Porsche Cayenne has a clearly perceptible advantage in terms of price – it starts at 87000 £ , while the Mercedes G Class costs 106600 £ . That’s a price difference of around 19590 £.

Fuel consumption also shows a difference: Porsche Cayenne manages with 4 L and is therefore convincingly more efficient than the Mercedes G Class with 8.70 L. The difference is about 4.70 L per 100 km.

In terms of energy consumption, the advantage goes to the Porsche Cayenne: with 19.70 kWh per 100 km, it’s decisively more efficient than the Mercedes G Class with 28 kWh. That’s a difference of about 8.30 kWh.

As for electric range, the Porsche Cayenne performs distinct better – achieving up to 642 km, about 174 km more than the Mercedes G Class.

Cayenne

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Porsche Cayenne has a significantly edge – offering 1156 HP compared to 605 HP. That’s roughly 551 HP more horsepower.

In acceleration from 0 to 100 km/h, the Porsche Cayenne is convincingly quicker – completing the sprint in 2.50 s, while the Mercedes G Class takes 4.40 s. That’s about 1.90 s faster.

In terms of top speed, the Porsche Cayenne performs distinct better – reaching 305 km/h, while the Mercedes G Class tops out at 220 km/h. The difference is around 85 km/h.

There’s also a difference in torque: Porsche Cayenne pulls noticeable stronger with 1500 Nm compared to 1164 Nm. That’s about 336 Nm difference.

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G 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 curb weight, Porsche Cayenne is somewhat lighter – 2130 kg compared to 2485 kg. The difference is around 355 kg.

In terms of boot space, the Porsche Cayenne offers to a small extent more room – 781 L compared to 640 L. That’s a difference of about 141 L.

In maximum load capacity, the Mercedes G Class performs somewhat better – up to 2010 L, which is about 302 L more than the Porsche Cayenne.

When it comes to payload, Mercedes G Class minimal takes the win – 715 kg compared to 705 kg. That’s a difference of about 10 kg.

Who wins the race in the data check?

The Porsche Cayenne is clearly superior 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.

Mercedes G Class
Porsche Cayenne

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £87,000
Cayenne

Porsche Cayenne

  • Engine Type : Petrol, Plugin Hybrid, Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 353 - 1156 HP
  • Consumption L/100km : 4 - 12.2 L
  • Consumption kWh/100km : 19.7 - 20.6 kWh
  • Electric Range : 74 - 642 km
details

Mercedes G Class

The G-Class, often called the G‑Wagen, is a blocky icon that blends unapologetic off-road prowess with a plush, modern cabin, announcing your arrival before you even step out. It’s equally at home crawling over rocks or cruising city streets, and owning one feels like adopting a very expensive, very capable personality.

details
18C0997_133
19C0473_066
18C0997_262

Porsche Cayenne

1.9 (1 Reviews)
rate

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.

details
P17_0701
P17_0780
P17_0777
P17_0776
P17_0784

Reviews Mercedes G Class

Reviews Porsche Cayenne

1.9 (1 Reviews)
rate

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Mercedes G Class
Porsche Cayenne

Costs and Consumption
Price
106600 - 171000 £
Price
87000 - 186400 £
Consumption L/100km
8.7 - 14.7 L
Consumption L/100km
4 - 12.2 L
Consumption kWh/100km
28 kWh
Consumption kWh/100km
19.7 - 20.6 kWh
Electric Range
468 km
Electric Range
74 - 642 km
Battery Capacity
116 kWh
Battery Capacity
21.80 kWh
co2
0 - 336 g/km
co2
0 - 277 g/km
Fuel tank capacity
100 L
Fuel tank capacity
70 - 90 L

Dimensions and Body
Body Type
Off-Roader
Body Type
SUV
Seats
5
Seats
4 - 5
Doors
5
Doors
5
Curb weight
2485 - 3085 kg
Curb weight
2130 - 2720 kg
Trunk capacity
620 - 640 L
Trunk capacity
434 - 781 L
Length
4624 - 4873 mm
Length
4930 mm
Width
1931 - 1984 mm
Width
1980 - 1989 mm
Height
1973 - 1983 mm
Height
1652 - 1698 mm
Max trunk capacity
1990 - 2010 L
Max trunk capacity
1344 - 1708 L
Payload
415 - 715 kg
Payload
365 - 705 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV, Diesel MHEV
Engine Type
Petrol, Plugin Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
387 - 605 HP
Power HP
353 - 1156 HP
Acceleration 0-100km/h
4.4 - 5.8 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
180 - 220 km/h
Max Speed
248 - 305 km/h
Torque
760 - 1164 Nm
Torque
500 - 1500 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
285 - 445 kW
Power kW
260 - 850 kW
Engine capacity
2989 - 3982 cm3
Engine capacity
2995 - 3996 cm3

General
Model Year
2024 - 2025
Model Year
2025 - 2026
CO2 Efficiency Class
A, G
CO2 Efficiency Class
G, B, C, A
Brand
Mercedes-Benz
Brand
Porsche

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What drive types are available for the Mercedes G Class?

Available configurations include All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.