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Audi A5 Avant vs Mercedes CLA Coupe comparison

Compare performance (639 HP vs 354 HP), boot space and price (40200 £ vs 39600 £ ) 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

  • convincingly more power
  • decisively more efficient
  • distinct quicker from 0–100 km/h
  • a bit more trunk space

Mercedes CLA Coupe

4.8 (2 Reviews)
rate
  • minimal cheaper
  • decisively more electric range
  • minimal lighter

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

A5 Avant

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 CLA Coupe has a minimal advantage in terms of price – it starts at 39600 £ , while the Audi A5 Avant costs 40200 £ . That’s a price difference of around 521 £.

Fuel consumption also shows a difference: Audi A5 Avant manages with 2.10 L and is therefore decisively more efficient than the Mercedes CLA Coupe with 4.90 L. The difference is about 2.80 L per 100 km.

As for electric range, the Mercedes CLA Coupe performs decisively better – achieving 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 has a convincingly edge – offering 639 HP compared to 354 HP. That’s roughly 285 HP more horsepower.

In acceleration from 0 to 100 km/h, the Audi A5 Avant is distinct quicker – completing the sprint in 3.70 s, while the Mercedes CLA Coupe takes 4.90 s. That’s about 1.20 s faster.

In terms of top speed, the Audi A5 Avant performs somewhat better – reaching 250 km/h, while the Mercedes CLA Coupe tops out at 210 km/h. The difference is around 40 km/h.

There’s also a difference in torque: Audi A5 Avant pulls noticeable stronger with 825 Nm compared to 515 Nm. That’s about 310 Nm difference.

A5 Avant

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In curb weight, Mercedes CLA Coupe is minimal lighter – 1695 kg compared to 1785 kg. The difference is around 90 kg.

In terms of boot space, the Audi A5 Avant offers a bit more room – 476 L compared to 405 L. That’s a difference of about 71 L.

When it comes to payload, Audi A5 Avant a bit takes the win – 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 decisively ahead 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.

Frequently compared as well

Audi A5 Avant
Audi A6 Avant
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The Audi A5 Avant is the stylish, nimble estate that turns everyday runs into a bit of a pleasure drive, whereas the Audi A6 Avant trades some of that sporting charm for a roomier cabin, extra tech and a composed motorway demeanour. Choose the A5 if you crave sharper looks and livelier handling, …
Mercedes CLA Coupe
Mercedes EQA
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In an electrifying matchup between the sleek Mercedes CLA Coupé and the innovative Mercedes EQA, drivers are offered a choice between potent gasoline dynamics and forward-thinking electric efficiency. The CLA Coupé enchants with its elegant design and turbocharged performance, tailored for driving …
Audi A5 Avant
Mercedes CLA Coupe

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £40,200
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
  • Electric Range : 83 - 108 km
details

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.

details
A244444_medium
A244446_medium
A244447_medium
A244450_medium

Mercedes CLA Coupe

4.8 (2 Reviews)
rate

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.

details
19C0225_069
19C0225_068
19C0225_067
19C0225_044

Reviews Audi A5 Avant

Reviews Mercedes CLA Coupe

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

Auto con una linea unica, la short brake finalmente ha un retro sportivo e un bagagliaio capiente

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
Audi A5 Avant
Mercedes CLA Coupe

Costs and Consumption
Price
40200 - 92400 £
Price
39600 - 59300 £
Consumption L/100km
2.1 - 7.7 L
Consumption L/100km
4.9 - 5.3 L
Consumption kWh/100km
-
Consumption kWh/100km
12.2 - 12.6 kWh
Electric Range
83 - 108 km
Electric Range
541 - 791 km
Battery Capacity
20.70 kWh
Battery Capacity
58 kWh
co2
47 - 175 g/km
co2
0 - 120 g/km
Fuel tank capacity
46 - 60 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
Coupe
Seats
4 - 5
Seats
5
Doors
5
Doors
4
Curb weight
1785 - 2445 kg
Curb weight
1695 - 2135 kg
Trunk capacity
361 - 476 L
Trunk capacity
405 L
Length
4829 - 4835 mm
Length
4723 mm
Width
1860 - 1952 mm
Width
1855 mm
Height
1444 - 1460 mm
Height
1468 mm
Max trunk capacity
1306 - 1424 L
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
214 - 250 km/h
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
1968 - 2995 cm3
Engine capacity
1499 cm3

General
Model Year
2025 - 2026
Model Year
2025 - 2026
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
A, C, D
Brand
Audi
Brand
Mercedes-Benz

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What drive types are available for the Audi A5 Avant?

The Audi A5 Avant is offered with All-Wheel Drive or Front-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.