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?
When it comes to top-tier luxury vehicles, two names often come to mind: the Mercedes G-Klasse and the Porsche Cayenne. Both are unique in their own right, yet they are worthy contenders in the realm of powerful, luxury off-road and sports utility vehicles. Let's delve into the details and see how these icons stack up against each other.
The Mercedes G-Klasse, colloquially known as the "G-Wagon," offers an impressive lineup of engines, ranging from petrol mild-hybrid electric vehicles (MHEV) to fully electric and diesel MHEVs. The petrol variant can produce between 387 to 605 HP, with torque measurements as high as 1050 Nm, making it a beast on any terrain. Acceleration is equally impressive, with some models rocketing from 0-100 km/h in just 4.4 seconds.
On the other hand, the Porsche Cayenne, with its line-up that includes both plugin hybrid and petrol engines, produces peak power ranging from 353 to an exhilarating 739 HP. Torque figures reach up to 950 Nm depending on the variant. Particularly notable is the Cayenne's superior top speed, reaching up to 305 km/h in certain models, and accelerating from 0-100 km/h in a mere 3.6 seconds.
The G-Klasse's fuel consumption stands between 8.7 to 14.7 L/100km for its combustion engines, while its electric configurations consume between 28 to 28.9 kWh/100km. The electric G-Wagon promises an impressive range up to 468 km on a full charge, thanks to its substantial 116 kWh battery capacity.
In stark contrast, the Cayenne shines in fuel efficiency, particularly with its plugin hybrid variants, consuming as little as 1.4 to 1.8 L/100km. Its electric range extends up to 78 km, with a significantly smaller battery capacity of 21.8 kWh, showcasing Porsche's engineering marvel. Traditional petrol engines consume between 10.8 to 12.6 L/100km, seated firmly within the high-performance SUV category.
The G-Klasse is an off-road archetype. Its rugged design with a boxy silhouette exudes a sense of adventure and endurance. There's ample space inside for five passengers, and a trunk capacity reaching up to 640 liters, suitable for both adventurous getaways and urban exploits. It stands tall at a height reaching up to 1983 mm, depending on the model.
Meanwhile, the Porsche Cayenne pushes the boundaries of modern SUV aesthetics. With a sleek, aerodynamic body, the Cayenne maximizes both luxury and athletic prowess. The cargo space is competitive, ranging from 434 to 772 liters, catering to families and individual enthusiasts alike. The vehicle's height is notably lower, reinforcing its sporty stance.
The Mercedes G-Klasse, equipped with a reduction gearbox and all-wheel drive, thrives on rugged terrains and challenging conditions. It's the quintessential off-roader that instills confidence in any expedition.
The Porsche Cayenne, optimized for speed and finesse, captures the essence of sports car performance within an SUV chassis. Its precise handling and agile maneuverability make it an absolute pleasure on both highways and winding roads, balancing luxury with thrill.
Choosing between the Mercedes G-Klasse and the Porsche Cayenne is a matter of preference dictated by lifestyle. The G-Klasse appeals to those who revel in iconic durability and adventure, while the Cayenne caters to the need for a luxurious speed demon that commands attention and delivers high-octane performance. Both vehicles encapsulate innovation and engineering prowess that keep them at the zenith of the automobile world.
Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
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.
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 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 convincingly better – reaching 305 km/h, while the Mercedes G Class tops out at 180 km/h. The difference is around 125 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.
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 1990 L, which is about 282 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.
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.
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.
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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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Costs and Consumption |
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Price
106600 - 171000 £
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Price
87000 - 186400 £
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Consumption L/100km
8.7 - 14.7 L
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Consumption L/100km
4 - 12.2 L
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Consumption kWh/100km
28 kWh
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Consumption kWh/100km
19.7 - 20.6 kWh
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Electric Range
468 km
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Electric Range
74 - 642 km
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Battery Capacity
116 kWh
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Battery Capacity
21.80 kWh
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co2
0 - 336 g/km
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co2
0 - 277 g/km
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Fuel tank capacity
-
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Fuel tank capacity
70 - 90 L
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Dimensions and Body |
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Body Type
Off-Roader
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Body Type
SUV
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Seats
5
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Seats
4 - 5
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Doors
5
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Doors
5
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Curb weight
2485 - 3085 kg
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Curb weight
2130 - 2720 kg
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Trunk capacity
620 - 640 L
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Trunk capacity
434 - 781 L
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Length
4624 mm
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Length
4930 mm
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Width
1931 - 1984 mm
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Width
1980 - 1989 mm
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Height
1983 mm
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Height
1652 - 1698 mm
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Max trunk capacity
1990 L
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Max trunk capacity
1344 - 1708 L
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Payload
415 - 715 kg
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Payload
365 - 705 kg
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Engine and Performance |
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Engine Type
Electric, Petrol MHEV, Diesel MHEV
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Engine Type
Petrol, Plugin Hybrid, Electric
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Reduction Gearbox, Automatic Gearbox
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Transmission Detail
Automatic Gearbox, Reduction Gearbox
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Drive Type
All-Wheel Drive
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Drive Type
All-Wheel Drive
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Power HP
387 - 605 HP
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Power HP
353 - 1156 HP
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Acceleration 0-100km/h
4.4 - 5.8 s
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Acceleration 0-100km/h
2.5 - 6 s
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Max Speed
180 km/h
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Max Speed
248 - 305 km/h
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Torque
760 - 1164 Nm
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Torque
500 - 1500 Nm
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Number of Cylinders
6 - 8
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Number of Cylinders
6 - 8
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Power kW
285 - 445 kW
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Power kW
260 - 850 kW
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Engine capacity
2989 - 3982 cm3
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Engine capacity
2995 - 3996 cm3
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General |
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Model Year
2024 - 2025
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Model Year
2025 - 2026
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CO2 Efficiency Class
A, G
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CO2 Efficiency Class
G, B, C, A
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Brand
Mercedes-Benz
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Brand
Porsche
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Available configurations include All-Wheel Drive.
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