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Mercedes GLB vs Ferrari Roma Coupe comparison

Compare performance (354 HP vs 620 HP), boot space and price (43,200 £ vs 181,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Ferrari Roma Coupe?

Mercedes GLB vs Ferrari Roma Coupe: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • significantly cheaper
  • significantly more efficient
  • significantly more trunk space
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Ferrari Roma Coupe

  • considerably more power
  • significantly quicker 0–100 km/h
  • somewhat lighter
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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.

By Achim Sedelmaier

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 significantly cheaper – starting at 43,200 £ , while the Ferrari Roma Coupe costs 181,800 £ . That’s a price difference of around 138,643 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is significantly more efficient than the Ferrari Roma Coupe with 10.3 L/100km. The difference is about 4.6 L/100km.

GLB

Engine and Performance:

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 Ferrari Roma Coupe offers considerably more power – delivering 620 HP compared to 354 HP. That’s roughly 266 HP more horsepower.

When accelerating from 0 to 100 km/h, the Ferrari Roma Coupe is significantly quicker – completing the sprint in 3.4 s, while the Mercedes GLB takes 5.5 s. That’s about 2.1 s quicker.

There’s also a difference in torque: the Ferrari Roma Coupe delivers visibly more torque with 760 Nm compared to 515 Nm. That’s about 245 Nm more.

GLB

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 GLB offers more seats – 5 vs 4.

In terms of curb weight, Ferrari Roma Coupe is somewhat lighter – 1,570 kg compared to 1,840 kg. The difference is around 270 kg.

Looking at boot space, the Mercedes GLB offers significantly more boot space – 540 L compared to 272 L. That’s a difference of about 268 L.

Who wins the race in the data check?

The Mercedes GLB 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.

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
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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)
rate
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

Ferrari Roma Coupe

The Ferrari Roma wears its elegance like a perfectly tailored suit, blending sleek Italian lines with surprising everyday usability that makes it as at home on a city street as on a winding coastal road. Behind that beguiling smile is a driver-focused character that promises thrilling responses and effortless charm, so if you want looks, luxury, and a bit of naughty performance without shouting about it, the Roma is your quiet showstopper.

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Reviews Ferrari Roma Coupe

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

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Ferrari Roma Coupe

Costs and Consumption
Price
43,200 - 62,400 £
Price
181,800 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
10.3 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
234 g/km
Fuel tank capacity
-
Fuel tank capacity
80 L

Dimensions and Body
Body Type
SUV
Body Type
Coupe
Seats
5
Seats
4
Doors
-
Doors
2
Curb weight
1,840 - 2,280 kg
Curb weight
1,570 kg
Trunk capacity
540 L
Trunk capacity
272 L
Length
-
Length
4,656 mm
Width
1,861 mm
Width
1,974 mm
Height
-
Height
1,301 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
-

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
156 - 354 HP
Power HP
620 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
320 km/h
Torque
280 - 515 Nm
Torque
760 Nm
Number of Cylinders
4
Number of Cylinders
8
Power kW
115 - 260 kW
Power kW
456 kW
Engine capacity
1,499 cm3
Engine capacity
3,855 cm3

General
Model Year
2026
Model Year
2020
CO2 Efficiency Class
A, D, E
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Ferrari
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.