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Mercedes CLA Coupe vs Audi A5 Sportback comparison

Compare performance (354 HP vs 639 HP), boot space and price (39,600 £ vs 40,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes CLA Coupe or Audi A5 Sportback?

Mercedes CLA Coupe vs Audi A5 Sportback: Key differences

Mercedes CLA Coupe

4.8 (2 Reviews)
rate
  • only slightly cheaper
  • substantially more electric range
  • very slightly lighter
  • slightly more trunk space

Audi A5 Sportback

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

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

CLA Coupe

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 Sportback costs 40,200 £ . That’s a price difference of around 564 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 2 L/100km and is significantly more efficient than the Mercedes CLA Coupe with 4.9 L/100km. The difference is about 2.9 L/100km.

As for electric range, the Mercedes CLA Coupe offers substantially more range – reaching up to 791 km, about 681 km more than the Audi A5 Sportback.

A5 Sportback

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 Sportback offers considerably 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 Sportback 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.

Looking at top speed, the Audi A5 Sportback is a bit faster – 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: the Audi A5 Sportback delivers noticeably more torque with 825 Nm compared to 515 Nm. That’s about 310 Nm more.

CLA Coupe

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 terms of curb weight, Mercedes CLA Coupe is very slightly lighter – 1,695 kg compared to 1,770 kg. The difference is around 75 kg.

Looking at boot space, the Mercedes CLA Coupe offers slightly more boot space – 405 L compared to 331 L. That’s a difference of about 74 L.

When it comes to payload, the Audi A5 Sportback carries moderately more – 530 kg compared to 455 kg. That’s a difference of about 75 kg.

Who wins the race in the data check?

The Audi A5 Sportback 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.

from £40,200
A5 Sportback

Audi A5 Sportback

  • 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 - 7.6 L/100km
  • Electric Range : 84 - 110 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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)
rate
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

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.

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Audi A5 Sportback

Costs and Consumption
Price
39,600 - 59,300 £
Price
40,200 - 91,000 £
Consumption L/100km
4.9 - 5.3 L/100km
Consumption L/100km
2 - 7.6 L/100km
Consumption kWh/100km
12.2 - 12.6 kWh/100km
Consumption kWh/100km
-
Electric Range
541 - 791 km
Electric Range
84 - 110 km
Battery Capacity
58 kWh
Battery Capacity
20.7 kWh
co2
0 - 120 g/km
co2
45 - 172 g/km
Fuel tank capacity
-
Fuel tank capacity
46 L

Dimensions and Body
Body Type
Coupe
Body Type
Hatchback
Seats
5
Seats
4 - 5
Doors
4
Doors
5
Curb weight
1,695 - 2,135 kg
Curb weight
1,770 - 2,430 kg
Trunk capacity
405 L
Trunk capacity
331 L
Length
4,723 mm
Length
4,829 mm
Width
1,855 mm
Width
1,860 - 1,952 mm
Height
1,468 mm
Height
1,444 mm
Max trunk capacity
-
Max trunk capacity
1,175 L
Payload
430 - 455 kg
Payload
475 - 530 kg

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

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

The Mercedes CLA Coupe is available as Rear-Wheel Drive, 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.