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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

4.1 (7 Reviews)
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  • substantially cheaper
  • only slightly more efficient
  • visibly 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:

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 16.7 kWh/100km for the Vauxhall Frontera. That’s a difference of about 1.3 kWh/100km.

As for electric range, the Mercedes GLB offers clearly more range – reaching up to 631 km, about 231 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
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Frequently compared as well

Opel Frontera
Opel Mokka
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Comparing the Opel Frontera and the Opel Mokka highlights two very different takes on the SUV idea: the Frontera is a rugged, older off‑road capable SUV, while the Mokka is a modern compact crossover built for city life and efficiency. This short guide will walk through their real‑world strengths …
Citroen C3 Aircross
Opel Frontera
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Choosing between the Citroën C3 Aircross and the Opel Frontera comes down to whether you want a compact, comfort-focused crossover or a more traditionally rugged SUV. The C3 Aircross shines with clever packaging, ride comfort and economy, while the Frontera offers stronger towing, load capacity and …
Mercedes GLB
Vauxhall Frontera

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)
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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 is a rugged, no-nonsense SUV that balances off-road capability with comfortable everyday driving. It offers straightforward mechanics and a practical cabin, making it a sensible choice for buyers who value durability over flash.

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Reviews Vauxhall Frontera

4.1 (7 Reviews)
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Pascal
5 Jun 2026, 04:10:37

A thoroughly bad cheap car. Feels like a C3 Aircross for the poor.

That's a reason to change employers! Terrible car.

It already has a nickname, "Klapperchen"

I think any Dacia is better!

How do you mainly use this car? (optional): Company car / Business
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Roch
18 May 2026, 10:12:50

Automatic gearbox and certain features, like the windshield wipers that aren’t optional; the trunk capacity is larger on the 5-seat Frontera.

Wolfgang
6 May 2026, 04:24:52

I just like the Opel better (maybe only because I'm very disappointed in VW and therefore also in its subsidiaries).

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
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

Frequently compared as well

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The Dacia Duster is the sensible new-school pick — affordable, economical and surprisingly well packaged with modern safety and infotainment for the money; the Opel Frontera, meanwhile, is a proper old-school body-on-frame bruiser that still appeals to buyers who prize simple, rugged off-road …
Mercedes EQB
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Mercedes GLB
smart #5
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The Mercedes GLB is a sensible, slightly boxy premium compact SUV that delivers real-world space, family practicality and a composed long-distance ride, while the smart #5 is a punchy electric crossover that trades rear-seat room for sharp styling, low running costs and urban agility. If you …
BMW iX3
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The BMW iX3 and Mercedes GLB go head-to-head as two very different takes on the premium compact SUV: the iX3 is BMW’s electric, efficiency-focused offering while the GLB is Mercedes’ practical, multi‑seat family SUV. This comparison will help you weigh the iX3’s EV range, refinement and tech …
Ford Puma
Opel Frontera
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The Ford Puma feels like a sprightly urban fox — compact, efficient and packed with modern tech, perfect if you want lively handling and low running costs for daily driving. The Opel Frontera is all rugged charm and chunky presence, built for dirt tracks and weekend hauls rather than tight city …
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The Nissan Qashqai is the smart, urban-friendly crossover that blends a polished ride, modern safety kit and frugal engines, while the Opel Frontera answers with old-school toughness and off-road chops rather than plush refinement. Buy the Qashqai for daily comfort, low running costs and gadgetry; …
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 L/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
16.7 - 18.3 kWh/100km
Electric Range
431 - 631 km
Electric Range
308 - 400 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
0 - 118 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.