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Mercedes B Class vs Rolls-Royce Phantom comparison

Compare performance (238 HP vs 571 HP), boot space and price (33,100 £ vs 445,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes B Class or Rolls-Royce Phantom?

Mercedes B Class vs Rolls-Royce Phantom: Key differences

Mercedes B Class

4.9 (5 Reviews)
rate
  • clearly cheaper
  • significantly more efficient
  • substantially lighter
details

Rolls-Royce Phantom

4.3 (1 Reviews)
rate
  • substantially more power
  • clearly quicker 0–100 km/h
  • moderately more trunk space
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

B Class

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 B Class is clearly cheaper – starting at 33,100 £ , while the Rolls-Royce Phantom costs 445,700 £ . That’s a price difference of around 412,585 £.

Fuel consumption also shows a difference: the Mercedes B Class uses 5.1 L/100km and is significantly more efficient than the Rolls-Royce Phantom with 15.5 L/100km. The difference is about 10.4 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 substantially more power – delivering 571 HP compared to 238 HP. That’s roughly 333 HP more horsepower.

When accelerating from 0 to 100 km/h, the Rolls-Royce Phantom is clearly quicker – completing the sprint in 5.3 s, while the Mercedes B Class takes 6.5 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Rolls-Royce Phantom delivers considerably more torque with 900 Nm compared to 400 Nm. That’s about 500 Nm more.

B 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 B Class is substantially lighter – 1,405 kg compared to 2,560 kg. The difference is around 1,155 kg.

Looking at boot space, the Rolls-Royce Phantom offers moderately more boot space – 548 L compared to 455 L. That’s a difference of about 93 L.

When it comes to payload, the Mercedes B Class carries slightly more – 550 kg compared to 440 kg. That’s a difference of about 110 kg.

Who wins the race in the data check?

The Mercedes B Class is far ahead 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.

from £33,100
B Class

Mercedes B Class

  • Engine Type Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 238 HP
  • Consumption L/100km 5.1 - 6.9 L/100km
details

Frequently compared as well

Mercedes B Class
Mercedes GLA
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Mercedes B Class
Rolls-Royce Phantom

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes B Class

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

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Reviews Mercedes B Class

4.9 (5 Reviews)
rate
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

How do you mainly use this car? (optional): Family car
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 B Class
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Mercedes B Class
Rolls-Royce Phantom

Costs and Consumption
Price
33,100 - 52,500 £
Price
445,700 - 514,300 £
Consumption L/100km
5.1 - 6.9 L/100km
Consumption L/100km
15.5 - 15.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
133 - 156 g/km
co2
351 - 361 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,405 - 1,565 kg
Curb weight
2,560 - 2,610 kg
Trunk capacity
445 - 455 L
Trunk capacity
548 L
Length
-
Length
-
Width
1,796 mm
Width
2,018 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
515 - 550 kg
Payload
390 - 440 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
116 - 238 HP
Power HP
571 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
5.3 - 5.4 s
Max Speed
-
Max Speed
-
Torque
200 - 400 Nm
Torque
900 Nm
Number of Cylinders
4
Number of Cylinders
12
Power kW
85 - 175 kW
Power kW
420 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
6,749 cm3

General
Model Year
2025
Model Year
2022
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Rolls-Royce
What drivetrain options does the Mercedes B Class have?

Available configurations include Front-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.