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Mercedes GLB vs Alpine A390 comparison

Compare performance (354 HP vs 470 HP), boot space and price (43,200 £ vs 57,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Alpine A390?

Mercedes GLB vs Alpine A390: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • clearly cheaper
  • noticeably more efficient
  • a bit more electric range
  • slightly lighter
  • only slightly more trunk space
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Alpine A390

  • clearly more power
  • significantly quicker 0–100 km/h
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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 key factors when choosing a car – and this is often where the real differences emerge.

Mercedes GLB is clearly cheaper – starting at 43,200 £ , while the Alpine A390 costs 57,900 £ . That’s a price difference of around 14,660 £.

In terms of energy consumption, the Mercedes GLB is noticeably more efficient: consuming 15.4 kWh/100km compared to 18.7 kWh/100km for the Alpine A390. That’s a difference of about 3.3 kWh/100km.

As for electric range, the Mercedes GLB offers a bit more range – reaching up to 631 km, about 80 km more than the Alpine A390.

A390

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 Alpine A390 offers clearly more power – delivering 470 HP compared to 354 HP. That’s roughly 116 HP more horsepower.

When accelerating from 0 to 100 km/h, the Alpine A390 is significantly quicker – completing the sprint in 3.9 s, while the Mercedes GLB takes 5.5 s. That’s about 1.6 s quicker.

There’s also a difference in torque: the Alpine A390 delivers clearly more torque with 824 Nm compared to 515 Nm. That’s about 309 Nm more.

GLB

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLB is slightly lighter – 1,840 kg compared to 2,121 kg. The difference is around 281 kg.

Looking at boot space, the Mercedes GLB offers only slightly more boot space – 540 L compared to 532 L. That’s a difference of about 8 L.

When it comes to payload, the Mercedes GLB carries marginally more – 505 kg compared to 484 kg. That’s a difference of about 21 kg.

Who wins the race in the data check?

The Alpine A390 is slightly 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 £57,900
A390

Alpine A390

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 400 - 470 HP
  • Consumption kWh/100km 18.7 - 20.4 kWh/100km
  • Electric Range 497 - 551 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

Alpine A390

The Alpine A390 is the brand’s leap into the fast electric crossover arena, wrapping Dieppe’s lightweight ethos in a sleek, coupe-ish body with real everyday usability. If the steering and chassis feel echo the A110, this could be the enthusiast’s family EV—subtle, sharp, and très chic, with enough theatre to make the school run feel like a pit lane exit.

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Reviews Alpine A390

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

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Alpine A390

Costs and Consumption
Price
43,200 - 62,400 £
Price
57,900 - 66,900 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
18.7 - 20.4 kWh/100km
Electric Range
431 - 631 km
Electric Range
497 - 551 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,840 - 2,280 kg
Curb weight
2,121 - 2,124 kg
Trunk capacity
540 L
Trunk capacity
532 L
Length
-
Length
-
Width
1,861 mm
Width
1,885 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
481 - 484 kg

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
156 - 354 HP
Power HP
400 - 470 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
3.9 - 4.8 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
661 - 824 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
115 - 260 kW
Power kW
295 - 345 kW
Engine capacity
1,499 cm3
Engine capacity
-

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