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Audi A6 Limousine vs Mercedes A Class Saloon comparison

Compare performance (367 HP vs 320 HP), boot space and price (47,600 £ vs 32,700 £ ) at a glance. Find out which car is the better choice for you – Audi A6 Limousine or Mercedes A Class Saloon?

Audi A6 Limousine vs Mercedes A Class Saloon: Key differences

Audi A6 Limousine

  • moderately more power
  • somewhat more electric range
  • marginally quicker 0–100 km/h
  • a bit more trunk space
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Mercedes A Class Saloon

  • significantly cheaper
  • substantially more efficient
  • visibly lighter
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By Achim Sedelmaier

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

A6 Limousine

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes A Class Saloon is significantly cheaper – starting at 32,700 £ , while the Audi A6 Limousine costs 47,600 £ . That’s a price difference of around 14,850 £.

Fuel consumption also shows a difference: the Mercedes A Class Saloon uses 0.7 L/100km and is substantially more efficient than the Audi A6 Limousine with 2.2 L/100km. The difference is about 1.5 L/100km.

As for electric range, the Audi A6 Limousine offers somewhat more range – reaching up to 105 km, about 17 km more than the Mercedes A Class Saloon.

A Class Saloon

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 Audi A6 Limousine offers moderately more power – delivering 367 HP compared to 320 HP. That’s roughly 47 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A6 Limousine is marginally quicker – completing the sprint in 4.7 s, while the Mercedes A Class Saloon takes 4.8 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the Audi A6 Limousine delivers markedly more torque with 580 Nm compared to 450 Nm. That’s about 130 Nm more.

A6 Limousine

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 A Class Saloon is visibly lighter – 1,450 kg compared to 1,845 kg. The difference is around 395 kg.

Looking at boot space, the Audi A6 Limousine offers a bit more boot space – 492 L compared to 395 L. That’s a difference of about 97 L.

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

Who wins the race in the data check?

The Mercedes A Class Saloon holds a decisive overall lead 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 £32,700
A Class Saloon

Mercedes A Class Saloon

  • Engine Type Plugin Hybrid, Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 320 HP
  • Consumption L/100km 0.7 - 8.1 L/100km
  • Electric Range 88 km
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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.

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Mercedes A Class Saloon

The Mercedes A‑Class Saloon blends compact practicality with premium flair, wrapping a surprisingly spacious interior in a slick, modern package that feels more grown-up than its hatchback sibling. It’s an ideal choice for city drivers who want Mercedes polish and cutting-edge tech without the ostentation of a larger saloon, and it even manages to make the daily commute feel a little bit special.

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Audi A6 Limousine
Mercedes A Class Saloon

Costs and Consumption
Price
47,600 - 68,100 £
Price
32,700 - 55,900 £
Consumption L/100km
2.2 - 7.3 L/100km
Consumption L/100km
0.7 - 8.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
97 - 105 km
Electric Range
88 km
Battery Capacity
-
Battery Capacity
12.9 kWh
co2
49 - 166 g/km
co2
16 - 184 g/km
Fuel tank capacity
-
Fuel tank capacity
35 - 51 L

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
4
Curb weight
1,845 - 2,220 kg
Curb weight
1,450 - 1,705 kg
Trunk capacity
354 - 492 L
Trunk capacity
345 - 395 L
Length
-
Length
4,558 - 4,570 mm
Width
1,875 mm
Width
1,796 mm
Height
-
Height
1,413 - 1,429 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
535 - 625 kg
Payload
475 - 490 kg

Engine and Performance
Engine Type
Petrol, Diesel MHEV, Petrol MHEV, Plugin Hybrid
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
204 - 367 HP
Power HP
116 - 320 HP
Acceleration 0-100km/h
4.7 - 8.2 s
Acceleration 0-100km/h
4.8 - 9.9 s
Max Speed
-
Max Speed
206 - 250 km/h
Torque
340 - 580 Nm
Torque
200 - 450 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4
Power kW
150 - 270 kW
Power kW
85 - 235 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2025
Model Year
2,024 - 2,025
CO2 Efficiency Class
F, D, E, B
CO2 Efficiency Class
B, D, G, E
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi A6 Limousine have?

Available configurations include Front-Wheel Drive or All-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.