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Audi A8 vs Mercedes GLC comparison

Compare performance (571 HP vs 680 HP), boot space and price (91,400 £ vs 50,300 £ ) at a glance. Find out which car is the better choice for you – Audi A8 or Mercedes GLC?

Audi A8 vs Mercedes GLC: Key differences

Audi A8

5 (1 Reviews)
rate

Mercedes GLC

4.4 (11 Reviews)
rate
  • considerably cheaper
  • a bit more power
  • clearly more efficient
  • considerably more electric range
  • barely quicker 0–100 km/h
  • only slightly lighter
  • noticeably more trunk space

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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

A8

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.

Mercedes GLC is considerably cheaper – starting at 50,300 £ , while the Audi A8 costs 91,400 £ . That’s a price difference of around 41,044 £.

Fuel consumption also shows a difference: the Mercedes GLC uses 1.6 L/100km and is clearly more efficient than the Audi A8 with 4.6 L/100km. The difference is about 3 L/100km.

As for electric range, the Mercedes GLC offers considerably more range – reaching up to 714 km, about 656 km more than the Audi A8.

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 Mercedes GLC offers a bit more power – delivering 680 HP compared to 571 HP. That’s roughly 109 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLC is barely quicker – completing the sprint in 3.5 s, while the Audi A8 takes 3.8 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Mercedes GLC delivers clearly more torque with 1,020 Nm compared to 800 Nm. That’s about 220 Nm more.

A8

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 terms of curb weight, Mercedes GLC is only slightly lighter – 1,910 kg compared to 2,035 kg. The difference is around 125 kg.

Looking at boot space, the Mercedes GLC offers noticeably more boot space – 620 L compared to 390 L. That’s a difference of about 230 L.

When it comes to payload, the Audi A8 carries moderately more – 700 kg compared to 600 kg. That’s a difference of about 100 kg.

Who wins the race in the data check?

The Mercedes GLC is far ahead overall 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 £50,300
GLC

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 - 9.7 L/100km
  • Consumption kWh/100km : 14.9 - 16.6 kWh/100km
  • Electric Range : 12 - 714 km
details

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Audi A8
Mercedes GLC

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A8

The Audi A8 arrives with the kind of quiet authority that makes other limousines feel like they’re trying too hard, offering a cabin wrapped in subtle luxury and tech that never demands attention. For buyers who want composed comfort and discreet status, it’s the sensible splurge that turns daily commutes into a private parade.

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Reviews Audi A8

5 (1 Reviews)
rate

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

Mercedes GLC

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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Reviews Mercedes GLC

4.4 (11 Reviews)
rate
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 A8
Mercedes GLC

Costs and Consumption
Price
91,400 - 134,900 £
Price
50,300 - 126,600 £
Consumption L/100km
4.6 - 11.5 L/100km
Consumption L/100km
1.6 - 9.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
14.9 - 16.6 kWh/100km
Electric Range
58 km
Electric Range
12 - 714 km
Battery Capacity
-
Battery Capacity
94 kWh
co2
105 - 260 g/km
co2
0 - 221 g/km
Fuel tank capacity
-
Fuel tank capacity
62 - 65 L

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
2,035 - 2,415 kg
Curb weight
1,910 - 2,535 kg
Trunk capacity
390 L
Trunk capacity
390 - 620 L
Length
-
Length
4,716 - 4,845 mm
Width
1,945 mm
Width
1,890 - 1,913 mm
Height
-
Height
1,603 - 1,644 mm
Max trunk capacity
-
Max trunk capacity
1,490 - 1,740 L
Payload
525 - 700 kg
Payload
475 - 600 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
286 - 571 HP
Power HP
186 - 680 HP
Acceleration 0-100km/h
3.8 - 5.9 s
Acceleration 0-100km/h
3.5 - 9 s
Max Speed
-
Max Speed
210 - 275 km/h
Torque
500 - 800 Nm
Torque
320 - 1,020 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4 - 6
Power kW
210 - 420 kW
Power kW
137 - 500 kW
Engine capacity
2,967 - 3,996 cm3
Engine capacity
1,991 - 2,989 cm3

General
Model Year
2,025
Model Year
2,025 - 2,026
CO2 Efficiency Class
G, C
CO2 Efficiency Class
F, G, D, B, E, A
Brand
Audi
Brand
Mercedes-Benz
What drive types are available for the Audi A8?

The Audi A8 is available as 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.