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Audi A6 Avant vs Mercedes GLC - Differences and prices compared
Compare performance (367 HP vs 680 HP), boot space and price (49700 £ vs 50300 £ ) at a glance. Find out which car is the better choice for you – Audi A6 Avant or Mercedes GLC?
A6 Avant
Costs and Efficiency:
Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.
Audi A6 Avant has a slight advantage in terms of price – it starts at 49700 £ , while the Mercedes GLC costs 50300 £ . That’s a price difference of around 613 £.
Fuel consumption also shows a difference: Mercedes GLC manages with 1.60 L and is therefore clearly more efficient than the Audi A6 Avant with 2.30 L. The difference is about 0.70 L per 100 km.
As for electric range, the Mercedes GLC performs significantly better – achieving up to 714 km, about 613 km more than the Audi A6 Avant.
GLC
Engine and Performance:
Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.
When it comes to engine power, the Mercedes GLC has a clearly 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 evident quicker – completing the sprint in 3.50 s, while the Audi A6 Avant takes 4.70 s. That’s about 1.20 s faster.
In terms of top speed, the Mercedes GLC performs barely noticeable better – reaching 275 km/h, while the Audi A6 Avant 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.
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A6 Avant
Space and Everyday Use:
Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.
Both vehicles offer seating for 5 people.
In curb weight, Audi A6 Avant is hardly perceptible lighter – 1865 kg compared to 1910 kg. The difference is around 45 kg.
In terms of boot space, the Mercedes GLC offers slightly more room – 620 L compared to 503 L. That’s a difference of about 117 L.
In maximum load capacity, the Mercedes GLC performs somewhat better – up to 1740 L, which is about 206 L more than the Audi A6 Avant.
When it comes to payload, Mercedes GLC hardly perceptible takes the win – 600 kg compared to 570 kg. That’s a difference of about 30 kg.
Who wins the race in the data check?
The Mercedes GLC sits 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.
Audi A6 Avant
Mercedes GLC
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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from about £50,300
Mercedes GLC
Audi A6 Avant
The Audi A6 Avant wraps executive poise and usable practicality into an impeccably finished estate that makes everyday driving feel noticeably more grown-up. It serves up a calm, composed ride and clever packaging for buyers who want space and refinement without ostentation — the sensible choice that still manages to impress.
details
Audi A6 Avant
Mercedes GLC
Costs and Consumption |
|
|---|---|
|
Price
49700 - 70200 £
|
Price
50300 - 126600 £
|
|
Consumption L/100km
2.3 - 7.5 L
|
Consumption L/100km
1.6 - 9.9 L
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
14.9 - 16.6 kWh
|
|
Electric Range
94 - 101 km
|
Electric Range
12 - 714 km
|
|
Battery Capacity
-
|
Battery Capacity
94 kWh
|
|
co2
53 - 170 g/km
|
co2
0 - 225 g/km
|
|
Fuel tank capacity
56 - 60 L
|
Fuel tank capacity
49 - 65 L
|
Dimensions and Body |
|
|---|---|
|
Body Type
Estate
|
Body Type
SUV
|
|
Seats
5
|
Seats
5
|
|
Doors
5
|
Doors
5
|
|
Curb weight
1865 - 2240 kg
|
Curb weight
1910 - 2535 kg
|
|
Trunk capacity
404 - 503 L
|
Trunk capacity
390 - 620 L
|
|
Length
4999 mm
|
Length
4716 - 4845 mm
|
|
Width
1875 mm
|
Width
1890 - 1913 mm
|
|
Height
1472 mm
|
Height
1603 - 1647 mm
|
|
Max trunk capacity
1497 - 1534 L
|
Max trunk capacity
1335 - 1740 L
|
|
Payload
535 - 570 kg
|
Payload
475 - 600 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Petrol, Petrol MHEV, Diesel 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 - 8.3 s
|
Acceleration 0-100km/h
3.5 - 9 s
|
|
Max Speed
238 - 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
|
Is the Audi A6 Avant offered with different drivetrains?
The Audi A6 Avant is available as Front-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.