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Mercedes G Class vs Rolls-Royce Cullinan comparison

Compare performance (605 HP vs 600 HP), boot space and price (106,600 £ vs 275,400 £ ) at a glance. Find out which car is the better choice for you – Mercedes G Class or Rolls-Royce Cullinan?

Mercedes G Class vs Rolls-Royce Cullinan: Key differences

Mercedes G Class

  • considerably cheaper
  • only slightly more power
  • significantly more efficient
  • a bit quicker 0–100 km/h
  • barely lighter
  • a bit more trunk space

Rolls-Royce Cullinan

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

G Class

Costs and Efficiency:

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

Mercedes G Class is considerably cheaper – starting at 106,600 £ , while the Rolls-Royce Cullinan costs 275,400 £ . That’s a price difference of around 168,810 £.

Fuel consumption also shows a difference: the Mercedes G Class uses 8.7 L/100km and is significantly more efficient than the Rolls-Royce Cullinan with 16 L/100km. The difference is about 7.3 L/100km.

Cullinan

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes G Class offers only slightly more power – delivering 605 HP compared to 600 HP. That’s roughly 5 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes G Class is a bit quicker – completing the sprint in 4.4 s, while the Rolls-Royce Cullinan takes 4.9 s. That’s about 0.5 s quicker.

There’s also a difference in torque: the Mercedes G Class delivers visibly more torque with 1,164 Nm compared to 900 Nm. That’s about 264 Nm more.

G Class

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes G Class is barely lighter – 2,485 kg compared to 2,660 kg. The difference is around 175 kg.

Looking at boot space, the Mercedes G Class offers a bit more boot space – 640 L compared to 555 L. That’s a difference of about 85 L.

When it comes to payload, the Rolls-Royce Cullinan carries a bit more – 840 kg compared to 715 kg. That’s a difference of about 125 kg.

Who wins the race in the data check?

The Mercedes G Class 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 £106,600
G Class

Mercedes G Class

  • Engine Type : Electric, Petrol MHEV, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 387 - 605 HP
  • Consumption L/100km : 8.7 - 14.7 L/100km
  • Consumption kWh/100km : 28 kWh/100km
  • Electric Range : 468 km
details

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View detailed analysis

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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.

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Rolls-Royce Cullinan

The Cullinan seamlessly combines the hallmark luxury of Rolls-Royce with the rugged versatility of an SUV, making it a true standout in the automotive landscape. Its impeccably crafted interior envelops passengers in a serene atmosphere, complemented by advanced technology and unparalleled comfort. With its commanding presence on the road, the Cullinan redefines what it means to travel in style without compromising on capability.

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Rolls-Royce Cullinan

Costs and Consumption
Price
106,600 - 171,000 £
Price
275,400 - 324,600 £
Consumption L/100km
8.7 - 14.7 L/100km
Consumption L/100km
16 - 16.8 L/100km
Consumption kWh/100km
28 kWh/100km
Consumption kWh/100km
-
Electric Range
468 km
Electric Range
-
Battery Capacity
116 kWh
Battery Capacity
-
co2
0 - 336 g/km
co2
363 - 380 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Off-Roader
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
2,485 - 3,085 kg
Curb weight
2,660 kg
Trunk capacity
620 - 640 L
Trunk capacity
555 L
Length
4,624 mm
Length
-
Width
1,931 - 1,984 mm
Width
2,000 mm
Height
1,983 mm
Height
-
Max trunk capacity
1,990 L
Max trunk capacity
-
Payload
415 - 715 kg
Payload
840 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV, Diesel MHEV
Engine Type
Petrol MHEV, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
387 - 605 HP
Power HP
571 - 600 HP
Acceleration 0-100km/h
4.4 - 5.8 s
Acceleration 0-100km/h
4.9 - 5.2 s
Max Speed
180 km/h
Max Speed
-
Torque
760 - 1,164 Nm
Torque
850 - 900 Nm
Number of Cylinders
6 - 8
Number of Cylinders
12
Power kW
285 - 445 kW
Power kW
420 - 441 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
6,749 cm3

General
Model Year
2,024 - 2,025
Model Year
2,024
CO2 Efficiency Class
A, G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Rolls-Royce
What drivetrain options does the Mercedes G Class have?

The Mercedes G Class is available as 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.