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Audi A6 e-tron Avant vs Mercedes GLC comparison

Compare performance (551 HP vs 472 HP), boot space and price (55,200 £ vs 50,300 £ ) at a glance. Find out which car is the better choice for you – Audi A6 e-tron Avant or Mercedes GLC?

Audi A6 e-tron Avant vs Mercedes GLC: Key differences

Audi A6 e-tron Avant

3.4 (3 Reviews)
rate
  • slightly more power
  • significantly more electric range
  • marginally quicker 0–100 km/h
details

Mercedes GLC

4.4 (13 Reviews)
rate
  • only slightly cheaper
  • slightly lighter
  • moderately 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

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

A6 e-tron Avant

Costs and Efficiency:

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

Mercedes GLC is only slightly cheaper – starting at 50,300 £ , while the Audi A6 e-tron Avant costs 55,200 £ . That’s a price difference of around 4,915 £.

As for electric range, the Audi A6 e-tron Avant offers significantly more range – reaching up to 716 km, about 588 km more than the Mercedes GLC.

GLC

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 Audi A6 e-tron Avant offers slightly more power – delivering 551 HP compared to 472 HP. That’s roughly 79 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A6 e-tron Avant is marginally quicker – completing the sprint in 3.9 s, while the Mercedes GLC takes 4.2 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Audi A6 e-tron Avant delivers moderately more torque with 855 Nm compared to 750 Nm. That’s about 105 Nm more.

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 terms of curb weight, Mercedes GLC is slightly lighter – 1,985 kg compared to 2,185 kg. The difference is around 200 kg.

Looking at boot space, the Mercedes GLC offers moderately more boot space – 620 L compared to 502 L. That’s a difference of about 118 L.

When it comes to payload, the Mercedes GLC carries slightly more – 575 kg compared to 500 kg. That’s a difference of about 75 kg.

Who wins the race in the data check?

The Audi A6 e-tron Avant holds a decisive overall lead 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 £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/100km
  • Electric Range 539 - 716 km
details

Frequently compared as well

Mercedes GLC
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The Mercedes GLC and the Volvo EX60 take different approaches to the premium compact SUV segment: the GLC leans on refined ride, traditional luxury and a choice of petrol, mild-hybrid or plug-in options, while the EX60 emphasizes all-electric power, minimalist Scandinavian design and advanced …
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The Audi Q6 e-tron and the Mercedes GLC represent two different takes on luxury midsize SUVs: the Q6 e-tron is Audi’s all-electric, tech-forward offering while the GLC is Mercedes’ established compact-luxury SUV available in conventional and electrified drivetrains. Choosing between them comes down …
Audi A6 e-tron Avant
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A6 e-tron Avant

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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Reviews Audi A6 e-tron Avant

3.4 (3 Reviews)
rate

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

Mercedes GLC

The Mercedes GLC blends quiet refinement with premium materials to create a comfortable, modern cabin that feels more upscale than its size might suggest. It delivers composed handling and confident on-road manners while offering practical versatility and a strong suite of driver assistance and infotainment features.

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Reviews Mercedes GLC

4.4 (13 Reviews)
rate
Zede
10 May 2026, 20:12:35

Too expensive! To justify it with technology that's equal or inferior.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Marek
2 Jan 2026, 18:32:30

There’s something about a Mercedes — you have to take it for a spin to feel it and understand why it’s special.

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

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Audi A6 e-tron Avant
Mercedes GLC

Costs and Consumption
Price
55,200 - 100,100 £
Price
50,300 - 82,100 £
Consumption L/100km
-
Consumption L/100km
1.6 - 9.4 L/100km
Consumption kWh/100km
14.8 - 17 kWh/100km
Consumption kWh/100km
-
Electric Range
539 - 716 km
Electric Range
122 - 128 km
Battery Capacity
75.8 - 94.9 kWh
Battery Capacity
-
co2
0 g/km
co2
41 - 214 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
2,185 - 2,410 kg
Curb weight
1,985 - 2,400 kg
Trunk capacity
502 L
Trunk capacity
390 - 620 L
Length
4,928 mm
Length
-
Width
1,923 mm
Width
1,890 - 1,920 mm
Height
1,504 - 1,527 mm
Height
-
Max trunk capacity
1,422 L
Max trunk capacity
-
Payload
470 - 500 kg
Payload
475 - 575 kg

Engine and Performance
Engine Type
Electric
Engine Type
Diesel MHEV, Plugin Hybrid, Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
326 - 551 HP
Power HP
186 - 472 HP
Acceleration 0-100km/h
3.9 - 6 s
Acceleration 0-100km/h
4.2 - 9 s
Max Speed
210 - 240 km/h
Max Speed
-
Torque
435 - 855 Nm
Torque
380 - 750 Nm
Number of Cylinders
-
Number of Cylinders
4 - 6
Power kW
240 - 405 kW
Power kW
137 - 347 kW
Engine capacity
-
Engine capacity
1,993 - 2,999 cm3

General
Model Year
2024
Model Year
2,025 - 2,026
CO2 Efficiency Class
A
CO2 Efficiency Class
D, B, E, F, G
Brand
Audi
Brand
Mercedes-Benz
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.

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.