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Mercedes GLS vs Rolls-Royce Cullinan comparison

Compare performance (404 HP vs 600 HP), boot space and price (92,700 £ vs 275,400 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLS or Rolls-Royce Cullinan?

Mercedes GLS vs Rolls-Royce Cullinan: Key differences

Mercedes GLS

  • significantly cheaper
  • clearly more efficient
  • barely lighter
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Rolls-Royce Cullinan

  • visibly more power
  • a bit quicker 0–100 km/h
  • clearly more trunk space
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By Achim Sedelmaier

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

GLS

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.

Mercedes GLS is significantly cheaper – starting at 92,700 £ , while the Rolls-Royce Cullinan costs 275,400 £ . That’s a price difference of around 182,738 £.

Fuel consumption also shows a difference: the Mercedes GLS uses 7.9 L/100km and is clearly more efficient than the Rolls-Royce Cullinan with 16 L/100km. The difference is about 8.1 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 Rolls-Royce Cullinan offers visibly more power – delivering 600 HP compared to 404 HP. That’s roughly 196 HP more horsepower.

When accelerating from 0 to 100 km/h, the Rolls-Royce Cullinan is a bit quicker – completing the sprint in 4.9 s, while the Mercedes GLS takes 5.6 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Rolls-Royce Cullinan delivers moderately more torque with 900 Nm compared to 750 Nm. That’s about 150 Nm more.

GLS

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.

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

In terms of curb weight, Mercedes GLS is barely lighter – 2,580 kg compared to 2,660 kg. The difference is around 80 kg.

Looking at boot space, the Rolls-Royce Cullinan offers clearly more boot space – 555 L compared to 355 L. That’s a difference of about 200 L.

When it comes to payload, the Rolls-Royce Cullinan carries very slightly more – 840 kg compared to 820 kg. That’s a difference of about 20 kg.

Who wins the race in the data check?

The Mercedes GLS stands well ahead of its rival 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 £92,700
GLS

Mercedes GLS

  • Engine Type Petrol MHEV, Diesel MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 336 - 404 HP
  • Consumption L/100km 7.9 - 9.9 L/100km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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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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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Reviews Rolls-Royce Cullinan

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Mercedes GLS
Rolls-Royce Cullinan

Costs and Consumption
Price
92,700 - 104,600 £
Price
275,400 - 324,600 £
Consumption L/100km
7.9 - 9.9 L/100km
Consumption L/100km
16 - 16.8 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
206 - 226 g/km
co2
363 - 380 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
7
Seats
5
Doors
-
Doors
-
Curb weight
2,580 - 2,670 kg
Curb weight
2,660 kg
Trunk capacity
355 L
Trunk capacity
555 L
Length
-
Length
-
Width
1,956 mm
Width
2,000 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
810 - 820 kg
Payload
840 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol MHEV, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 404 HP
Power HP
571 - 600 HP
Acceleration 0-100km/h
5.6 - 6.2 s
Acceleration 0-100km/h
4.9 - 5.2 s
Max Speed
-
Max Speed
-
Torque
560 - 750 Nm
Torque
850 - 900 Nm
Number of Cylinders
6
Number of Cylinders
12
Power kW
247 - 297 kW
Power kW
420 - 441 kW
Engine capacity
2,989 - 2,999 cm3
Engine capacity
6,749 cm3

General
Model Year
2026
Model Year
2024
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Rolls-Royce
Is the Mercedes GLS offered with different drivetrains?

The Mercedes GLS 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.