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Audi A6 Limousine vs Mercedes CLA Coupe – Differences & prices compared

Both models have their strengths – but which one suits you more?
Compare performance, efficiency, price and space directly: Audi A6 Limousine or Mercedes CLA Coupe?

Audi A6 Limousine

Mercedes CLA Coupe

Here’s where it gets real: The technical differences in detail

A6 Limousine @ Audi AG

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 has a noticeable advantage in terms of price – it starts at 37100 £, while the Audi A6 Limousine costs 47600 £. That’s a price difference of around 10469 £.

Fuel consumption also shows a difference: Audi A6 Limousine manages with 2.20 L and is therefore barely noticeable more efficient than the Mercedes CLA Coupe with 2.30 L. The difference is about 0.10 L per 100 km.

As for range, the Mercedes CLA Coupe performs significantly better – achieving up to 791 km, about 686 km more than the Audi A6 Limousine.

CLA Coupe @ Mercedes-Benz Group Media

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes CLA Coupe has a slightly edge – offering 421 HP compared to 367 HP. That’s roughly 54 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes CLA Coupe is to a small extent quicker – completing the sprint in 4.10 s, while the Audi A6 Limousine takes 4.70 s. That’s about 0.60 s faster.

In terms of top speed, the Mercedes CLA Coupe performs barely noticeable better – reaching 270 km/h, while the Audi A6 Limousine tops out at 250 km/h. The difference is around 20 km/h.

There’s also a difference in torque: Audi A6 Limousine pulls minimal stronger with 550 Nm compared to 515 Nm. That’s about 35 Nm difference.

A6 Limousine @ Audi AG

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 curb weight, Mercedes CLA Coupe is noticeable lighter – 1505 kg compared to 1845 kg. The difference is around 340 kg.

In terms of boot space, the Audi A6 Limousine offers minimal more room – 492 L compared to 460 L. That’s a difference of about 32 L.

When it comes to payload, Audi A6 Limousine noticeable takes the win – 625 kg compared to 490 kg. That’s a difference of about 135 kg.

Who wins the race?

The Mercedes CLA Coupe proves to be wins the duel decisively and therefore becomes our DriveDuel Champion!
Mercedes CLA Coupe is the better all-rounder in this comparison.

Audi A6 Limousine
Mercedes CLA Coupe

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £37,100
CLA Coupe @ Mercedes-Benz Group Media

Mercedes CLA Coupe

  • Engine Type : Plugin Hybrid, Petrol MHEV, Diesel, Petrol, Electric
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 116 - 421 HP
  • Consumption L/100km : 2.3 - 8.9 L
  • Consumption kWh/100km : 12.2 - 12.6 kWh
  • Electric Range : 86 - 791 km
details

Audi A6 Limousine

The Audi A6 cuts a clean, purposeful silhouette with an interior that feels like a quiet, high-tech office on wheels—luxurious materials and clever gadgets make long journeys surprisingly pleasant. It balances composed, confident driving with enough flair to keep you entertained, making it a sensible choice for buyers who want executive polish without showing off.

details
A185651_overfull @ Audi AG
A185640_overfull @ Audi AG
A185643_overfull @ Audi AG
A185645_overfull @ Audi AG
A185033_overfull @ Audi AG

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.

details
19C0225_069 @ Mercedes-Benz Group Media
19C0225_068 @ Mercedes-Benz Group Media
19C0225_067 @ Mercedes-Benz Group Media
19C0225_044 @ Mercedes-Benz Group Media

Reviews Audi A6 Limousine

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Audi A6 Limousine
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A6 Limousine @ Audi AG
CLA Coupe @ Mercedes-Benz Group Media

Costs and Consumption
Price
47600 - 68100 £
Price
37100 - 73700 £
Consumption L/100km
2.2 - 6.9 L
Consumption L/100km
2.3 - 8.9 L
Consumption kWh/100km
-
Consumption kWh/100km
12.2 - 12.6 kWh
Electric Range
97 - 105 km
Electric Range
86 - 791 km
Battery Capacity
20.70 kWh
Battery Capacity
12.9 - 85 kWh
co2
49 - 157 g/km
co2
0 - 202 g/km
Fuel tank capacity
46 - 60 L
Fuel tank capacity
35 - 51 L

Dimensions and Body
Body Type
Sedan
Body Type
Coupe
Seats
5
Seats
5
Doors
4
Doors
4
Curb weight
1845 - 2220 kg
Curb weight
1505 - 2135 kg
Trunk capacity
354 - 492 L
Trunk capacity
395 - 460 L
Length
4999 mm
Length
4692 - 4723 mm
Width
1875 mm
Width
1834 - 1857 mm
Height
1452 mm
Height
1404 - 1468 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
535 - 625 kg
Payload
440 - 490 kg

Engine and Performance
Engine Type
Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic, Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive, Rear-Wheel Drive
Power HP
204 - 367 HP
Power HP
116 - 421 HP
Acceleration 0-100km/h
4.7 - 8.2 s
Acceleration 0-100km/h
4.1 - 10 s
Max Speed
243 - 250 km/h
Max Speed
205 - 270 km/h
Torque
340 - 550 Nm
Torque
230 - 515 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
150 - 270 kW
Power kW
85 - 310 kW
Engine capacity
1968 - 2995 cm3
Engine capacity
1332 - 1991 cm3

General
Model Year
2025
Model Year
2024 - 2025
CO2 Efficiency Class
F, D, E, B
CO2 Efficiency Class
B, D, E, G, A
Brand
Audi
Brand
Mercedes-Benz

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What drive types are available for the Audi A6 Limousine?

Available configurations include Front-Wheel Drive or All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.

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