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Mercedes GLB vs Ferrari 12Cilindri Roadster comparison

Compare performance (354 HP vs 830 HP), boot space and price (43,200 £ vs 372,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Ferrari 12Cilindri Roadster?

Mercedes GLB vs Ferrari 12Cilindri Roadster: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • clearly cheaper
  • substantially more efficient
  • significantly more trunk space
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Ferrari 12Cilindri Roadster

  • considerably more power
  • clearly quicker 0–100 km/h
  • slightly 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:

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 GLB is clearly cheaper – starting at 43,200 £ , while the Ferrari 12Cilindri Roadster costs 372,900 £ . That’s a price difference of around 329,660 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is substantially more efficient than the Ferrari 12Cilindri Roadster with 15.9 L/100km. The difference is about 10.2 L/100km.

12Cilindri Roadster

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 12Cilindri Roadster offers considerably more power – delivering 830 HP compared to 354 HP. That’s roughly 476 HP more horsepower.

When accelerating from 0 to 100 km/h, the Ferrari 12Cilindri Roadster is clearly quicker – completing the sprint in 2.9 s, while the Mercedes GLB takes 5.5 s. That’s about 2.6 s quicker.

There’s also a difference in torque: the Ferrari 12Cilindri Roadster delivers clearly more torque with 678 Nm compared to 515 Nm. That’s about 163 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.

Seats: Mercedes GLB offers more seats – 5 vs 2.

In terms of curb weight, Ferrari 12Cilindri Roadster is slightly lighter – 1,620 kg compared to 1,840 kg. The difference is around 220 kg.

Looking at boot space, the Mercedes GLB offers significantly more boot space – 540 L compared to 200 L. That’s a difference of about 340 L.

Who wins the race in the data check?

The Mercedes GLB 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 £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 12Cilindri Roadster

The Ferrari 12Cilindri Roadster is a sun-worshipping supercar that mixes theatrical Italian flair with a taut, driver-focused chassis — it looks and sounds like it belongs on a silver-screen chase. If you want headline-grabbing style and a roof-down, grin-inducing experience that turns every country lane into your personal theater, this Ferrari delivers with cheeky confidence.

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Reviews Ferrari 12Cilindri Roadster

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

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Mercedes GLB
Ferrari 12Cilindri Roadster

Costs and Consumption
Price
43,200 - 62,400 £
Price
372,900 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
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
360 g/km
Fuel tank capacity
-
Fuel tank capacity
92 L

Dimensions and Body
Body Type
SUV
Body Type
Roadster
Seats
5
Seats
2
Doors
-
Doors
2
Curb weight
1,840 - 2,280 kg
Curb weight
1,620 kg
Trunk capacity
540 L
Trunk capacity
200 L
Length
-
Length
4,733 mm
Width
1,861 mm
Width
1,980 mm
Height
-
Height
1,292 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
830 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
2.9 s
Max Speed
-
Max Speed
340 km/h
Torque
280 - 515 Nm
Torque
678 Nm
Number of Cylinders
4
Number of Cylinders
12
Power kW
115 - 260 kW
Power kW
611 kW
Engine capacity
1,499 cm3
Engine capacity
6,496 cm3

General
Model Year
2026
Model Year
2024
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.