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Audi A5 Sportback vs Mercedes GLC comparison

Compare performance (639 HP vs 680 HP), boot space and price (40,200 £ vs 50,300 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Mercedes GLC?

Audi A5 Sportback vs Mercedes GLC: Key differences

Audi A5 Sportback

  • markedly cheaper
  • moderately lighter
details

Mercedes GLC

4.4 (11 Reviews)
rate
  • only slightly more power
  • visibly more efficient
  • substantially more electric range
  • barely quicker 0–100 km/h
  • clearly more trunk space
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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

A5 Sportback

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 A5 Sportback is markedly cheaper – starting at 40,200 £ , while the Mercedes GLC costs 50,300 £ . That’s a price difference of around 10,127 £.

Fuel consumption also shows a difference: the Mercedes GLC uses 1.6 L/100km and is visibly more efficient than the Audi A5 Sportback with 2 L/100km. The difference is about 0.4 L/100km.

As for electric range, the Mercedes GLC offers substantially more range – reaching up to 714 km, about 604 km more than the Audi A5 Sportback.

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 offers only slightly more power – delivering 680 HP compared to 639 HP. That’s roughly 41 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 A5 Sportback takes 3.7 s. That’s about 0.2 s quicker.

There’s also a difference in torque: the Mercedes GLC delivers slightly more torque with 1,020 Nm compared to 825 Nm. That’s about 195 Nm more.

A5 Sportback

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, Audi A5 Sportback is moderately lighter – 1,770 kg compared to 1,985 kg. The difference is around 215 kg.

Looking at boot space, the Mercedes GLC offers clearly more boot space – 620 L compared to 331 L. That’s a difference of about 289 L.

When it comes to payload, the Mercedes GLC carries only slightly more – 575 kg compared to 530 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The Mercedes GLC is clearly superior 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 : Diesel MHEV, Plugin Hybrid, 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
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Frequently compared as well

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Audi A5 Sportback
Mercedes GLC

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A5 Sportback

The Audi A5 Sportback dresses up sleek coupe proportions with the everyday sense of a practical hatchback, so you get striking looks without the compromises. Behind the wheel it balances poise and comfort with premium trimmings that make daily driving feel a little bit special — ideal for buyers who want style and substance in equal measure.

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Reviews Audi A5 Sportback

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 A5 Sportback
Mercedes GLC

Costs and Consumption
Price
40,200 - 91,000 £
Price
50,300 - 111,000 £
Consumption L/100km
2 - 7.6 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
84 - 110 km
Electric Range
12 - 714 km
Battery Capacity
-
Battery Capacity
94 kWh
co2
45 - 172 g/km
co2
0 - 221 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,770 - 2,430 kg
Curb weight
1,985 - 2,535 kg
Trunk capacity
331 L
Trunk capacity
390 - 620 L
Length
-
Length
4,845 mm
Width
1,860 - 1,952 mm
Width
1,890 - 1,913 mm
Height
-
Height
1,644 mm
Max trunk capacity
-
Max trunk capacity
1,740 L
Payload
475 - 530 kg
Payload
475 - 575 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Diesel MHEV, Plugin Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
150 - 639 HP
Power HP
186 - 680 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
3.5 - 9 s
Max Speed
-
Max Speed
210 km/h
Torque
280 - 825 Nm
Torque
380 - 1,020 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4 - 6
Power kW
110 - 470 kW
Power kW
137 - 500 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
1,991 - 2,989 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
D, B, E, F, G, A
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi A5 Sportback have?

The Audi A5 Sportback is available as All-Wheel Drive or Front-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.