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Audi A5 Avant vs Mercedes CLA Coupe comparison

Compare performance (639 HP vs 354 HP), boot space and price (41,600 £ vs 39,600 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Avant or Mercedes CLA Coupe?

Audi A5 Avant vs Mercedes CLA Coupe: Key differences

Audi A5 Avant

  • clearly more power
  • considerably more efficient
  • clearly quicker 0–100 km/h
details

Mercedes CLA Coupe

4.8 (2 Reviews)
rate
  • only slightly cheaper
  • considerably more electric range
  • only slightly lighter
  • moderately more trunk space
details

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:

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.

Mercedes CLA Coupe is only slightly cheaper – starting at 39,600 £ , while the Audi A5 Avant costs 41,600 £ . That’s a price difference of around 1,978 £.

Fuel consumption also shows a difference: the Audi A5 Avant uses 2.1 L/100km and is considerably more efficient than the Mercedes CLA Coupe with 4.9 L/100km. The difference is about 2.8 L/100km.

As for electric range, the Mercedes CLA Coupe offers considerably more range – reaching up to 791 km, about 683 km more than the Audi A5 Avant.

CLA Coupe

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 354 HP. That’s roughly 285 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A5 Avant is clearly quicker – completing the sprint in 3.7 s, while the Mercedes CLA Coupe takes 4.9 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Audi A5 Avant delivers noticeably more torque with 825 Nm compared to 515 Nm. That’s about 310 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, Mercedes CLA Coupe is only slightly lighter – 1,695 kg compared to 1,785 kg. The difference is around 90 kg.

Looking at boot space, the Mercedes CLA Coupe offers moderately more boot space – 405 L compared to 361 L. That’s a difference of about 44 L.

When it comes to payload, the Audi A5 Avant carries slightly more – 535 kg compared to 455 kg. That’s a difference of about 80 kg.

Who wins the race in the data check?

The Audi A5 Avant 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 £41,600
A5 Avant

Audi A5 Avant

  • Engine Type : Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Front-Wheel Drive
  • Power HP : 150 - 639 HP
  • Consumption L/100km : 2.1 - 7.7 L/100km
  • Electric Range : 83 - 108 km
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Frequently compared as well

Audi A5 Avant
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Mercedes CLA Coupe
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Audi A5 Avant
Mercedes CLA Coupe

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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Reviews Audi A5 Avant

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

Mercedes CLA Coupe

The Mercedes CLA Coupe cuts a rakish silhouette that blends sporty coupe lines with everyday practicality, giving style-minded buyers a premium image without shouting. Inside it feels more luxurious than its size suggests, with a slick cabin, intuitive tech and a composed ride — the kind of car that parties in the city and still shows up polished on Sunday morning.

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Reviews Mercedes CLA Coupe

4.8 (2 Reviews)
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marco
12 Mar 2026, 18:44:45

A car with a unique line — the shooting brake finally gets a sporty rear and a roomy trunk.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Dejf
18 Dec 2025, 14:59:40

Nice efficient car. Like it

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Audi A5 Avant
Mercedes CLA Coupe

Costs and Consumption
Price
41,600 - 92,400 £
Price
39,600 - 59,300 £
Consumption L/100km
2.1 - 7.7 L/100km
Consumption L/100km
4.9 - 5.3 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
12.2 - 12.6 kWh/100km
Electric Range
83 - 108 km
Electric Range
541 - 791 km
Battery Capacity
-
Battery Capacity
58 kWh
co2
47 - 175 g/km
co2
0 - 120 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
Coupe
Seats
5
Seats
5
Doors
-
Doors
4
Curb weight
1,785 - 2,445 kg
Curb weight
1,695 - 2,135 kg
Trunk capacity
361 L
Trunk capacity
405 L
Length
-
Length
4,723 mm
Width
1,860 - 1,952 mm
Width
1,855 mm
Height
-
Height
1,468 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 kg
Payload
430 - 455 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Electric, Petrol MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Reduction Gearbox, Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive, Front-Wheel Drive
Power HP
150 - 639 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
4.9 - 8.8 s
Max Speed
-
Max Speed
210 km/h
Torque
280 - 825 Nm
Torque
280 - 515 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
110 - 470 kW
Power kW
115 - 260 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
1,499 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
A, C, D
Brand
Audi
Brand
Mercedes-Benz
What drive types are available for the Audi A5 Avant?

Available configurations include 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.