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Mercedes GLB vs Vauxhall Frontera comparison

Compare performance (354 HP vs 145 HP), boot space and price (43,200 £ vs 20,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Vauxhall Frontera?

Mercedes GLB vs Vauxhall Frontera: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • considerably more power
  • marginally more efficient
  • clearly more electric range
  • considerably quicker 0–100 km/h
  • slightly more trunk space
details

Vauxhall Frontera

4.5 (4 Reviews)
rate
  • substantially cheaper
  • only slightly more efficient
  • visibly lighter
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

GLB

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Vauxhall Frontera is substantially cheaper – starting at 20,700 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 22,463 £.

Fuel consumption also shows a difference: the Vauxhall Frontera uses 5.2 L/100km and is only slightly more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 0.5 L/100km.

In terms of energy consumption, the Mercedes GLB is marginally more efficient: consuming 15.4 kWh/100km compared to 15.8 kWh/100km for the Vauxhall Frontera. That’s a difference of about 0.4 kWh/100km.

As for electric range, the Mercedes GLB offers clearly more range – reaching up to 631 km, about 223 km more than the Vauxhall Frontera.

Frontera

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes GLB offers considerably more power – delivering 354 HP compared to 145 HP. That’s roughly 209 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is considerably quicker – completing the sprint in 5.5 s, while the Vauxhall Frontera takes 9.1 s. That’s about 3.6 s quicker.

There’s also a difference in torque: the Mercedes GLB delivers considerably more torque with 515 Nm compared to 230 Nm. That’s about 285 Nm more.

GLB

Space and Everyday Use:

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

Seats: Vauxhall Frontera offers more seats – 7 vs 5.

In terms of curb weight, Vauxhall Frontera is visibly lighter – 1,394 kg compared to 1,840 kg. The difference is around 446 kg.

Looking at boot space, the Mercedes GLB offers slightly more boot space – 540 L compared to 460 L. That’s a difference of about 80 L.

When it comes to payload, the Vauxhall Frontera carries moderately more – 570 kg compared to 505 kg. That’s a difference of about 65 kg.

Who wins the race in the data check?

The Mercedes GLB stands well ahead of its rival 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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Mercedes GLB
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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 practical compact SUV that mixes boxy, family-friendly space with premium German polish, making it an appealing choice for buyers who want usefulness without pretension. It drives with a confident, composed feel and somehow manages to look both rugged and refined — the grown-up SUV that still likes to have fun.

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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

Vauxhall Frontera

The Opel Frontera wears its rugged, go-anywhere intentions proudly, serving up a simple, no-nonsense package that feels as comfortable off the beaten track as it does at the supermarket. It won’t set hearts racing with glamour, but its honest practicality and rugged charm make it a smart pick for buyers who prefer substance over style.

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Reviews Vauxhall Frontera

4.5 (4 Reviews)
rate
Gilbert
14 Apr 2026, 08:19:17

I bought the Opel Frontera GS 145PS after also testing the VW T‑Roc; so far I've driven about 5,800 km in it.

My purchase decision was based on the following criteria:
- modern design that stands out from the crowd
- low fuel consumption
- very good seats and plenty of space front and rear
- large, practical boot
- good performance characteristics
- very easy to get into
- simple controls, partly with physical buttons
- clear, well‑laid‑out cockpit

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
H. P.
19 Dec 2025, 13:27:19

Opel has clearly skimped here. Misaligned panel gaps, no position/parking light, patchy workmanship and ill‑fitting parts — for example the partition between the passenger footwell and the engine bay — the owner's manual is inadequate and at times reads like a fairy tale; many of the functions it describes are nowhere to be found. They simply don't exist. And the claimed fuel consumption? Even with normal driving — that is, without acceleration orgies — it's unattainable.

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

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Mercedes GLB
Vauxhall Frontera

Costs and Consumption
Price
43,200 - 62,400 £
Price
20,700 - 30,000 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
5.2 - 5.3 L/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
15.8 - 18.3 kWh/100km
Electric Range
431 - 631 km
Electric Range
308 - 408 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
0 - 119 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5 - 7
Doors
-
Doors
-
Curb weight
1,840 - 2,280 kg
Curb weight
1,394 - 1,610 kg
Trunk capacity
540 L
Trunk capacity
460 L
Length
-
Length
-
Width
1,861 mm
Width
1,795 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
436 - 570 kg

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Electric, Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
156 - 354 HP
Power HP
110 - 145 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
9.1 - 14.2 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
125 - 230 Nm
Number of Cylinders
4
Number of Cylinders
3
Power kW
115 - 260 kW
Power kW
81 - 107 kW
Engine capacity
1,499 cm3
Engine capacity
1,199 cm3

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
A, D, E
CO2 Efficiency Class
A, D
Brand
Mercedes-Benz
Brand
Vauxhall
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.