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Audi A5 Avant vs Mercedes C-Class EQ comparison

Compare performance (639 HP vs 489 HP), boot space and price (41,600 £ vs 58,000 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Avant or Mercedes C-Class EQ?

Audi A5 Avant vs Mercedes C-Class EQ: Key differences

Audi A5 Avant

4.4 (1 Reviews)
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  • noticeably cheaper
  • clearly more power
  • marginally quicker 0–100 km/h
  • noticeably lighter
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Mercedes C-Class EQ

  • clearly more electric range
  • markedly 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 Avant

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Audi A5 Avant is noticeably cheaper – starting at 41,600 £ , while the Mercedes C-Class EQ costs 58,000 £ . That’s a price difference of around 16,424 £.

As for electric range, the Mercedes C-Class EQ offers clearly more range – reaching up to 753 km, about 645 km more than the Audi A5 Avant.

C-Class EQ

Engine and Performance:

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 Audi A5 Avant offers clearly more power – delivering 639 HP compared to 489 HP. That’s roughly 150 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A5 Avant is marginally quicker – completing the sprint in 3.7 s, while the Mercedes C-Class EQ takes 4 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Audi A5 Avant delivers very slightly more torque with 825 Nm compared to 800 Nm. That’s about 25 Nm more.

A5 Avant

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, Audi A5 Avant is noticeably lighter – 1,785 kg compared to 2,460 kg. The difference is around 675 kg.

Looking at boot space, the Mercedes C-Class EQ offers markedly more boot space – 470 L compared to 361 L. That’s a difference of about 109 L.

When it comes to payload, the Audi A5 Avant carries only slightly more – 535 kg compared to 505 kg. That’s a difference of about 30 kg.

Who wins the race in the data check?

The Mercedes C-Class EQ stands 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.

from £58,000
C-Class EQ

Mercedes C-Class EQ

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 489 HP
  • Consumption kWh/100km : 14.3 - 15.6 kWh/100km
  • Electric Range : 706 - 753 km
Audi A5 Avant
Mercedes C-Class EQ

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Audi A5 Avant

The Audi A5 Avant dresses like a sleek coupe but carries like a sensible estate, offering buyers a rare blend of glamour and everyday practicality. Inside, the cabin feels beautifully sorted and the drive is composed and engaging, making routine errands feel a touch more enjoyable than they have any right to be.

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Mercedes C-Class EQ

The Mercedes C‑Class EQ blends the familiar poise and luxury of the C‑Class with Mercedes' EQ electric ethos, delivering a quietly refined and modern driving experience. Inside, it pairs upscale materials and tech-forward touches with a composed ride that suits both city commuting and longer journeys.

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Audi A5 Avant
Mercedes C-Class EQ

Costs and Consumption

Price
41,600 - 92,400 £
Price
58,000 - 67,600 £
Consumption L/100km
2.1 - 7.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
14.3 - 15.6 kWh/100km
Electric Range
83 - 108 km
Electric Range
706 - 753 km
Battery Capacity
-
Battery Capacity
-
co2
47 - 175 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
Estate
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,785 - 2,445 kg
Curb weight
2,460 kg
Trunk capacity
361 L
Trunk capacity
470 L
Length
-
Length
-
Width
1,860 - 1,952 mm
Width
1,892 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 kg
Payload
505 kg

Engine and Performance

Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
150 - 639 HP
Power HP
489 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
4 s
Max Speed
-
Max Speed
-
Torque
280 - 825 Nm
Torque
800 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
110 - 470 kW
Power kW
360 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
-

General

Model Year
2,025 - 2,026
Model Year
2026
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
A
Brand
Audi
Brand
Mercedes-Benz
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.