@ Audi AG
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Audi A6 Limousine vs Mercedes GLC – Which model is better for everyday use?

Two cars, one duel: Audi A6 Limousine meets Mercedes GLC.
Which one wins in performance, efficiency and value for money? Find out now!

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

A6 Limousine @ Audi AG

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.

Audi A6 Limousine has a hardly perceptible advantage in terms of price – it starts at 47600 £, while the Mercedes GLC costs 50300 £. That’s a price difference of around 2756 £.

Fuel consumption also shows a difference: Mercedes GLC manages with 1.60 L and is therefore distinct more efficient than the Audi A6 Limousine with 2.20 L. The difference is about 0.60 L per 100 km.

As for range, the Mercedes GLC performs convincingly better – achieving up to 714 km, about 609 km more than the Audi A6 Limousine.

GLC @ Mercedes-Benz Group Media

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 GLC has a convincingly edge – offering 680 HP compared to 367 HP. That’s roughly 313 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes GLC is noticeable quicker – completing the sprint in 3.50 s, while the Audi A6 Limousine takes 4.70 s. That’s about 1.20 s faster.

In terms of top speed, the Mercedes GLC performs minimal better – reaching 275 km/h, while the Audi A6 Limousine tops out at 250 km/h. The difference is around 25 km/h.

There’s also a difference in torque: Mercedes GLC pulls convincingly stronger with 1020 Nm compared to 550 Nm. That’s about 470 Nm difference.

A6 Limousine @ Audi AG

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 curb weight, Audi A6 Limousine is hardly perceptible lighter – 1845 kg compared to 1910 kg. The difference is around 65 kg.

In terms of boot space, the Mercedes GLC offers evident more room – 620 L compared to 492 L. That’s a difference of about 128 L.

When it comes to payload, Audi A6 Limousine minimal takes the win – 625 kg compared to 600 kg. That’s a difference of about 25 kg.

Who wins the race?

The Mercedes GLC proves to be wins the duel decisively and therefore becomes our DriveDuel Champion!
Mercedes GLC is the better all-rounder in this comparison.

from about £50,300
GLC @ Mercedes-Benz Group Media

Mercedes GLC

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 186 - 680 HP
  • Consumption L/100km : 1.6 - 9.9 L
  • Consumption kWh/100km : 14.9 - 16.6 kWh
  • Electric Range : 12 - 714 km

Audi A6 Limousine

The Audi A6 Limousine seamlessly blends sophistication with performance, embodying the perfect balance between comfort and dynamic driving. Its sleek design and meticulously crafted interior provide an elegant atmosphere, while the advanced technology enhances the driving experience. With a reputation for reliability and innovation, the A6 stands out in the executive saloon segment, appealing to drivers who appreciate both style and substance.

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Mercedes GLC

4 (2)
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The Mercedes GLC blends plush cabin comfort and composed road manners into an SUV that feels more grown-up than it looks. It won’t shout for attention, but will quietly please buyers who want refinement, usable space and a touch of luxury without the drama.

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Audi A6 Limousine
Mercedes GLC
A6 Limousine @ Audi AG
GLC @ Mercedes-Benz Group Media

Costs and Consumption

Price
47600 - 68100 £
Price
50300 - 126600 £
Consumption L/100km
2.2 - 6.9 L
Consumption L/100km
1.6 - 9.9 L
Consumption kWh/100km
-
Consumption kWh/100km
14.9 - 16.6 kWh
Electric Range
97 - 105 km
Electric Range
12 - 714 km
Battery Capacity
20.70 kWh
Battery Capacity
94 kWh
co2
49 - 157 g/km
co2
0 - 225 g/km
Fuel tank capacity
46 - 60 L
Fuel tank capacity
49 - 65 L

Dimensions and Body

Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
4
Doors
5
Curb weight
1845 - 2220 kg
Curb weight
1910 - 2535 kg
Trunk capacity
354 - 492 L
Trunk capacity
390 - 620 L
Length
4999 mm
Length
4716 - 4845 mm
Width
1875 mm
Width
1890 - 1913 mm
Height
1452 mm
Height
1603 - 1647 mm
Max trunk capacity
-
Max trunk capacity
1335 - 1740 L
Payload
535 - 625 kg
Payload
475 - 600 kg

Engine and Performance

Engine Type
Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
204 - 367 HP
Power HP
186 - 680 HP
Acceleration 0-100km/h
4.7 - 8.2 s
Acceleration 0-100km/h
3.5 - 9 s
Max Speed
243 - 250 km/h
Max Speed
208 - 275 km/h
Torque
340 - 550 Nm
Torque
320 - 1020 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4 - 6
Power kW
150 - 270 kW
Power kW
137 - 500 kW
Engine capacity
1968 - 2995 cm3
Engine capacity
1991 - 2989 cm3

General

Model Year
2025
Model Year
2025 - 2026
CO2 Efficiency Class
F, D, E, B
CO2 Efficiency Class
F, G, B, A
Brand
Audi
Brand
Mercedes-Benz
What drive types are available for the Audi A6 Limousine?

Available configurations include Front-Wheel Drive or All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.