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Audi Q4 e-tron vs Mercedes GLB comparison

Compare performance (340 HP vs 354 HP), boot space and price (40,700 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Audi Q4 e-tron or Mercedes GLB?

Audi Q4 e-tron vs Mercedes GLB: Key differences

Audi Q4 e-tron

4.9 (2 Reviews)
rate
  • only slightly cheaper
  • marginally more efficient
  • barely quicker 0–100 km/h
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • very slightly more power
  • barely more electric range
  • moderately lighter
  • barely more trunk space
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

Q4 e-tron

Overview: Audi Q4 e-tron VS Mercedes GLB — what this matchup is about

The Audi Q4 e-tron and the Mercedes GLB present two different answers to the same brief: a premium compact SUV that doubles as a family car. The Q4 e-tron leans toward composed, quiet refinement and an Audi-like cockpit logic, while the GLB trades some showroom gloss for greater utility and a tech-forward, configurable interior. Buyers will feel the trade-off immediately: the Q4 e-tron emphasizes serene road manners and rear-seat space, the Mercedes GLB emphasizes flexibility, seating options and rapid charging for long hauls. This comparison focuses on how those philosophical differences play out in everyday life rather than on raw numbers. Next we’ll unpack driving character, comfort, usability, cabin feel and final buyer fit to help you decide which suits your routine better.

GLB

Character and driving feel

The Audi Q4 e-tron presents itself as a composed, slightly heavy companion that soaks up motorway distances with minimal fuss; its weight and suspension tuning favor serenity over sport. The Mercedes GLB feels more utilitarian and alert — lighter on its feet, with a steering and seating position that make city manoeuvres and towing chores feel straightforward. Where the Q4 e-tron rewards steady speed and relaxed progress, the GLB rewards versatility and the ability to switch between family duties and brisk bursts without feeling out of place. Buyers who prioritise a plush, confidence-inspiring cruise will tend to prefer the Q4 e-tron, while buyers who want a more pragmatic, hands-on SUV experience will tilt toward the GLB.

Q4 e-tron

Comfort and long-distance behavior

On long runs the Audi Q4 e-tron stands out for its low noise levels and steady ride — it’s the kind of car that makes motorway miles feel shorter because it isolates occupants from wind and road chatter. The Mercedes GLB is similarly relaxed at speed but scores practical wins for long trips thanks to its faster-charging architecture and additional front storage in EV versions, which cut stop time and free up luggage space. The Q4 e-tron’s suspension tuning gives a refined, settled feeling when cruising, whereas the GLB’s setup prioritises usability and can feel a touch firmer or more direct depending on trim. For frequent long-distance commuters the Q4 e-tron sells serenity; for families who want short, effective stops and more usable onboard storage the GLB is compelling.

GLB

Practicality and family usability

The Mercedes GLB is the practical champion of the pair: it offers configurable seating — even an occasional third row — a front trunk on electric models and versatile cargo arrangements that suit holiday loads or weekend kit. The Audi Q4 e-tron wins back ground with a genuinely roomy rear bench and a flat floor that makes child seats and three-abreast arrangements easier and more comfortable for everyday family life. The trade-off is clear: the GLB’s extra seats and frunk add flexibility but the third row is best for kids, while the Q4 e-tron’s simpler five-seat layout gives more usable space for four adults and luggage. Families who regularly need seven seats, towing ability or extra storage will find the GLB better tailored to their calendar; those who prioritise rear-seat comfort and an easy-to-use loading floor will favour the Q4 e-tron.

Q4 e-tron

Cabin feel, controls and perceived quality

The Audi Q4 e-tron delivers an interior that reads familiar and restrained: clean controls, physical climate buttons and an overall presentation that feels intentional even if some plastics betray its cost considerations. The Mercedes GLB pushes a modern, screen-dominant look with a bold multi-screen layout and connected software features, but that tech shine coexists with noticeable hard plastics and a touch-heavy control scheme. In everyday use the Q4 e-tron’s physical controls make routine adjustments less distracting, while the GLB’s digital approach rewards patience and a willingness to live with touch and voice interfaces. If perceived premium feel and tactile reassurance matter more, the Q4 e-tron tends to feel a fraction closer to classic premium; if presence, connectivity and clever packaging are higher priorities, the GLB’s cabin will impress despite its material compromises.

GLB

Buyer fit — who should pick which car

Choose the Audi Q4 e-tron if your driving life centres on calm motorway miles, refined cabin acoustics, easy rear-seat access and an Audi-style control layout; it’s aimed at comfort-oriented commuters and families of four who value serenity over gimmicks. Choose the Mercedes GLB if you need maximum day-to-day versatility — occasional seven-seat capacity, a frunk in EV guise, faster high-power charging and the ability to tow or haul more without changing cars. The decision comes down to trade-offs: pick the Q4 e-tron for a quieter, more composed passenger experience, pick the GLB for modularity, quick charging and family practicality. Below you’ll find a technical comparison that translates these real-world differences into the numbers behind range, charging, dimensions and power so you can match features to your needs.

Frequently compared as well

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Here’s where it gets real: The technical differences in detail

Q4 e-tron

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Audi Q4 e-tron is only slightly cheaper – starting at 40,700 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 2,483 £.

In terms of energy consumption, the Audi Q4 e-tron is marginally more efficient: consuming 14.8 kWh/100km compared to 15.4 kWh/100km for the Mercedes GLB. That’s a difference of about 0.6 kWh/100km.

As for electric range, the Mercedes GLB offers barely more range – reaching up to 631 km, about 39 km more than the Audi Q4 e-tron.

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 Mercedes GLB offers very slightly more power – delivering 354 HP compared to 340 HP. That’s roughly 14 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi Q4 e-tron is barely quicker – completing the sprint in 5.4 s, while the Mercedes GLB takes 5.5 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Audi Q4 e-tron delivers markedly more torque with 679 Nm compared to 515 Nm. That’s about 164 Nm more.

Q4 e-tron

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 moderately lighter – 1,840 kg compared to 2,035 kg. The difference is around 195 kg.

Looking at boot space, the Mercedes GLB offers barely more boot space – 540 L compared to 535 L. That’s a difference of about 5 L.

When it comes to payload, the Audi Q4 e-tron carries very slightly more – 515 kg compared to 505 kg. That’s a difference of about 10 kg.

Who wins the race in the data check?

The Audi Q4 e-tron sits just ahead 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 £40,700
Q4 e-tron

Audi Q4 e-tron

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 204 - 340 HP
  • Consumption kWh/100km : 14.8 - 16.2 kWh/100km
  • Electric Range : 440 - 592 km
details
Audi Q4 e-tron
Mercedes GLB

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi Q4 e-tron

The Audi Q4 e-tron blends Audi’s clean, modern styling with a practical, well-built interior, making it a refined option for buyers who want a premium electric compact SUV. It offers a quiet, composed ride and intuitive tech, so it’s well suited to daily commuting and family duties while keeping the switch to electric straightforward.

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Reviews Audi Q4 e-tron

4.9 (2 Reviews)
rate

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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

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Audi Q4 e-tron
Mercedes GLB

Costs and Consumption
Price
40,700 - 53,100 £
Price
43,200 - 62,400 £
Consumption L/100km
-
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
14.8 - 16.2 kWh/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
440 - 592 km
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 - 138 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
2,035 - 2,235 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
515 - 535 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,865 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
505 - 515 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric, Full Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
204 - 340 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
5.4 - 8.1 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
350 - 679 Nm
Torque
280 - 515 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
150 - 250 kW
Power kW
115 - 260 kW
Engine capacity
-
Engine capacity
1,499 cm3

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, D, E
Brand
Audi
Brand
Mercedes-Benz
Is the Audi Q4 e-tron offered with different drivetrains?

The Audi Q4 e-tron is available as 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.