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Mercedes GLB vs Rolls-Royce Phantom comparison

Compare performance (354 HP vs 571 HP), boot space and price (43,200 £ vs 445,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Rolls-Royce Phantom?

Mercedes GLB vs Rolls-Royce Phantom: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • clearly cheaper
  • considerably more efficient
  • markedly lighter
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Rolls-Royce Phantom

4.3 (1 Reviews)
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  • visibly more power
  • marginally quicker 0–100 km/h
  • marginally more trunk space
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All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

GLB

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.

Mercedes GLB is clearly cheaper – starting at 43,200 £ , while the Rolls-Royce Phantom costs 445,700 £ . That’s a price difference of around 402,517 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is considerably more efficient than the Rolls-Royce Phantom with 15.5 L/100km. The difference is about 9.8 L/100km.

Phantom

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 Rolls-Royce Phantom offers visibly more power – delivering 571 HP compared to 354 HP. That’s roughly 217 HP more horsepower.

When accelerating from 0 to 100 km/h, the Rolls-Royce Phantom is marginally quicker – completing the sprint in 5.3 s, while the Mercedes GLB takes 5.5 s. That’s about 0.2 s quicker.

There’s also a difference in torque: the Rolls-Royce Phantom delivers substantially more torque with 900 Nm compared to 515 Nm. That’s about 385 Nm more.

GLB

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 terms of curb weight, Mercedes GLB is markedly lighter – 1,840 kg compared to 2,560 kg. The difference is around 720 kg.

Looking at boot space, the Rolls-Royce Phantom offers marginally more boot space – 548 L compared to 540 L. That’s a difference of about 8 L.

When it comes to payload, the Mercedes GLB carries slightly more – 505 kg compared to 440 kg. That’s a difference of about 65 kg.

Who wins the race in the data check?

The Mercedes GLB is decisively ahead 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 £43,200
GLB

Mercedes GLB

  • Engine Type Electric, Full Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 156 - 354 HP
  • Consumption L/100km 5.7 - 6.1 L/100km
  • Consumption kWh/100km 15.4 - 15.9 kWh/100km
  • Electric Range 431 - 631 km
details

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Rolls-Royce Phantom

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLB

The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.

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Reviews Mercedes GLB

3.6 (4 Reviews)
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Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Rolls-Royce Phantom

The Phantom stands as the epitome of luxury and craftsmanship, effortlessly merging opulence with unparalleled performance. With its iconic design and attention to detail, this flagship sedan commands respect on the road while cocooning its passengers in sumptuous comfort. Every journey in the Phantom is an experience, where timeless elegance meets cutting-edge technology.

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Reviews Rolls-Royce Phantom

4.3 (1 Reviews)
rate

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

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Mercedes GLB
Rolls-Royce Phantom

Costs and Consumption
Price
43,200 - 62,400 £
Price
445,700 - 514,300 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
15.5 - 15.9 L/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
-
Electric Range
431 - 631 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
351 - 361 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,840 - 2,280 kg
Curb weight
2,560 - 2,610 kg
Trunk capacity
540 L
Trunk capacity
548 L
Length
-
Length
-
Width
1,861 mm
Width
2,018 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
390 - 440 kg

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
156 - 354 HP
Power HP
571 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
5.3 - 5.4 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
900 Nm
Number of Cylinders
4
Number of Cylinders
12
Power kW
115 - 260 kW
Power kW
420 kW
Engine capacity
1,499 cm3
Engine capacity
6,749 cm3

General
Model Year
2026
Model Year
2022
CO2 Efficiency Class
A, D, E
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Rolls-Royce
What drive types are available for the Mercedes GLB?

Available configurations include Rear-Wheel Drive or 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.