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Audi A6 e-tron Avant vs Mercedes GLB - Differences and prices compared

Compare performance (551 HP vs 320 HP), boot space and price (55200 £ vs 40500 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Avant or Mercedes GLB?

Audi A6 e-tron Avant

3 (2 Reviews)
rate

Mercedes GLB

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

A6 e-tron Avant

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 has a noticeable advantage in terms of price – it starts at 40500 £ , while the Audi A6 e-tron Avant costs 55200 £ . That’s a price difference of around 14733 £.

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 Audi A6 e-tron Avant has a clearly edge – offering 551 HP compared to 320 HP. That’s roughly 231 HP more horsepower.

In acceleration from 0 to 100 km/h, the Audi A6 e-tron Avant is decisively quicker – completing the sprint in 3.90 s, while the Mercedes GLB takes 5.50 s. That’s about 1.60 s faster.

In terms of top speed, the Mercedes GLB performs slight better – reaching 250 km/h, while the Audi A6 e-tron Avant tops out at 240 km/h. The difference is around 10 km/h.

There’s also a difference in torque: Audi A6 e-tron Avant pulls clearly stronger with 855 Nm compared to 400 Nm. That’s about 455 Nm difference.

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A6 e-tron Avant

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In curb weight, Mercedes GLB is evident lighter – 1640 kg compared to 2185 kg. The difference is around 545 kg.

In terms of boot space, the Mercedes GLB offers to a small extent more room – 570 L compared to 502 L. That’s a difference of about 68 L.

In maximum load capacity, the Mercedes GLB performs clearly perceptible better – up to 1805 L, which is about 383 L more than the Audi A6 e-tron Avant.

Maximum payload is identical – both can carry up to 500 kg.

Who wins the race?

The Audi A6 e-tron Avant proves to be wins the duel decisively and therefore becomes our DriveDuel Champion!
Audi A6 e-tron Avant is the better all-rounder in this comparison.

from about £55,200
A6 e-tron Avant

Audi A6 e-tron Avant

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 326 - 551 HP
  • Consumption kWh/100km : 14.8 - 17 kWh
  • Electric Range : 539 - 716 km
details
Audi A6 e-tron Avant
Mercedes GLB

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A6 e-tron Avant

3 (2 Reviews)
rate

The Audi A6 e-tron Avant wraps Audi's trademark refinement into a sleek electric estate that looks at home in the city or on the open road. Inside it's grown-up and tech-forward with practical packaging for family life, delivering a composed, confident drive that makes everyday hauling feel a bit more special and slightly futuristic.

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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 Audi A6 e-tron Avant

3 (2 Reviews)
rate

Reviews Mercedes GLB

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Audi A6 e-tron Avant
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Costs and Consumption
Price
55200 - 100100 £
Price
40500 - 65300 £
Consumption L/100km
-
Consumption L/100km
5.6 - 9 L
Consumption kWh/100km
14.8 - 17 kWh
Consumption kWh/100km
-
Electric Range
539 - 716 km
Electric Range
-
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
-
co2
0 g/km
co2
146 - 204 g/km
Fuel tank capacity
-
Fuel tank capacity
52 - 60 L

Dimensions and Body
Body Type
Estate
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
2185 - 2410 kg
Curb weight
1640 - 1820 kg
Trunk capacity
502 L
Trunk capacity
565 - 570 L
Length
4928 mm
Length
4634 - 4650 mm
Width
1923 mm
Width
1834 - 1850 mm
Height
1504 - 1527 mm
Height
1665 - 1692 mm
Max trunk capacity
1422 L
Max trunk capacity
1800 - 1805 L
Payload
470 - 500 kg
Payload
500 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
326 - 551 HP
Power HP
116 - 320 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
5.5 - 11.5 s
Max Speed
210 - 240 km/h
Max Speed
188 - 250 km/h
Torque
435 - 855 Nm
Torque
230 - 400 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
240 - 405 kW
Power kW
85 - 235 kW
Engine capacity
-
Engine capacity
1332 - 1991 cm3

General
Model Year
2024
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
E, F, G
Brand
Audi
Brand
Mercedes-Benz

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What drivetrain options does the Audi A6 e-tron Avant have?

The Audi A6 e-tron Avant is available as Rear-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.