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?
The automotive world is buzzing with two of the most discussed luxury vehicles: the Audi A6 Avant and the Mercedes-Benz GLC. Both come with their own set of perks and cutting-edge innovations, but which one better meets your need for dynamic driving pleasure and practicality? Let's explore the details.
The Audi A6 Avant retains its reputation as a stylish and functional wagon. With a length ranging between 4939mm and 4995mm and a graceful width up to 1951mm, it showcases sleek lines that speak volumes of its luxury branding. This wagon stands elegantly lower with heights between 1450mm to 1469mm.
On the other hand, the Mercedes GLC assumes the robust stance of an SUV. Its length varies from 4716mm to 4792mm, combined with a consistent width of 1890mm. With a height reaching up to 1647mm, the GLC asserts its dominance on the road, offering a familiar SUV look.
The A6 Avant comes with an impressive variety of engines, including diesel, petrol mild hybrid (MHEV), and plug-in hybrid options, with power output stretching from a modest 163 HP to a staggering 630 HP for the sportier variants. Supported with dual-clutch automatic or regular automatic transmissions, it offers both front-wheel and all-wheel drive, further enhancing its versatility.
Mercedes-Benz GLC, however, doesn't shy away from offering power. With petrol, diesel MHEV, and plug-in hybrid engines, its power range rings between 186 HP and 680 HP. In particular, the plug-in hybrids promise an impressive electric range, reaching up to 130 km on a full charge.
Fuel efficiency remains a focal point for both cars. Audi's most economical A6 Avant model consumes as low as 1.4L/100km thanks to its hybrid technology, but mostly ranges between 5.4 to 12.3L/100km based on engine choice.
Mercedes GLC comes close with its commendable fuel consumption range of 0.4 to 10.3L/100km, with the plug-in hybrid models shining with that astonishingly low figure.
When it comes to space, both cars offer distinct advantages. The A6 Avant is known for its trunk capacity, offering between 405 to 565 liters, ensuring that long trips are never tripped up by packing constraints.
However, with 620 liters of trunk space, the GLC unambiguously takes the lead. Both cars comfortably seat five occupants, offering a comfortable travel experience regardless of the destination.
Deciding between the Audi A6 Avant and the Mercedes-Benz GLC is a matter of choosing between the elegance and driving dynamics of a wagon and the versatility and elevated presence of an SUV. The A6 Avant would cater to those looking for a traditional, performance-oriented luxury car, while the GLC is designed for those desiring an opulent SUV with exceptional power and hybrid technology.
Each model brings its unique strengths to the table, ultimately leaving the choice in the hands of individual preferences where design, power, efficiency, and space are balanced according to personal needs.
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.
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 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 580 Nm. That’s about 440 Nm difference.
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, 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.
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.
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.
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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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Costs and Consumption |
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Price
49700 - 70200 £
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Price
50300 - 126600 £
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Consumption L/100km
2.3 - 7.5 L
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Consumption L/100km
1.6 - 9.7 L
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Consumption kWh/100km
-
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Consumption kWh/100km
14.9 - 16.6 kWh
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Electric Range
94 - 101 km
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Electric Range
12 - 714 km
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Battery Capacity
-
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Battery Capacity
94 kWh
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co2
53 - 170 g/km
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co2
0 - 221 g/km
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Fuel tank capacity
56 - 60 L
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Fuel tank capacity
62 - 65 L
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Dimensions and Body |
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|---|---|
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Body Type
Estate
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Body Type
SUV
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Seats
5
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Seats
5
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Doors
5
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Doors
5
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Curb weight
1865 - 2240 kg
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Curb weight
1910 - 2535 kg
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Trunk capacity
404 - 503 L
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Trunk capacity
390 - 620 L
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Length
4999 mm
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Length
4716 - 4845 mm
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Width
1875 mm
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Width
1890 - 1913 mm
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Height
1472 mm
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Height
1603 - 1644 mm
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Max trunk capacity
1497 - 1534 L
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Max trunk capacity
1490 - 1740 L
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Payload
535 - 570 kg
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Payload
475 - 600 kg
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Engine and Performance |
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|---|---|
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Engine Type
Petrol, Petrol MHEV, Diesel MHEV, Plugin Hybrid
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Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Dual-Clutch Automatic
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Transmission Detail
Automatic Gearbox, Reduction Gearbox
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Drive Type
Front-Wheel Drive, All-Wheel Drive
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Drive Type
All-Wheel Drive
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Power HP
204 - 367 HP
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Power HP
186 - 680 HP
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Acceleration 0-100km/h
4.7 - 8.3 s
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Acceleration 0-100km/h
3.5 - 9 s
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Max Speed
238 - 250 km/h
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Max Speed
210 - 275 km/h
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Torque
340 - 580 Nm
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Torque
320 - 1020 Nm
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Number of Cylinders
4 - 6
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Number of Cylinders
4 - 6
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Power kW
150 - 270 kW
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Power kW
137 - 500 kW
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Engine capacity
1968 - 2995 cm3
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Engine capacity
1991 - 2989 cm3
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General |
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|---|---|
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Model Year
2025
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Model Year
2025 - 2026
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CO2 Efficiency Class
F, D, E, B
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CO2 Efficiency Class
F, G, D, B, E, A
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Brand
Audi
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Brand
Mercedes-Benz
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The Audi A6 Avant is available as Front-Wheel Drive or All-Wheel Drive.
Deutschland
France
Nederland
Great Britain
Sverige
Danmark
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