Audi A6 engine produces 20 HP more power than Audi A4, whereas torque is 33 NM more than Audi A4. Thanks to more power Audi A6 reaches 100 km/h speed 0.1 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
6.8
6.5
Real fuel consumption:
7.8 l/100km
7.1 l/100km
The Audi A4 is a better choice when it comes to fuel economy. By specification Audi A6 consumes 0.3 litres more fuel per 100 km than the Audi A4, which means that if you drive 15,000 km in a year, the Audi A6 could require 45 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A6 consumes 0.7 litres more fuel per 100 km than the Audi A4.
Fuel tank capacity:
70 litres
62 litres
Full fuel tank distance:
1020 km in combined cycle
950 km in combined cycle
1320 km on highway
1190 km on highway
890 km with real consumption
870 km with real consumption
Audi A6 gets more mileage on one fuel tank.
Engines
Average engine lifespan:
560'000 km
600'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used, but under equal conditions the average life of a Audi A4 engine could be longer.
Engine production duration:
4 years
5 years
Engine spread:
Installed on at least 10 other car models, including Volkswagen Passat, Volkswagen Golf, Seat Alhambra, Seat Leon
Installed on at least 4 other car models, including Volkswagen Sharan, Volkswagen Polo, Seat Toledo, Seat Cordoba
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Audi A6 might be a better choice in this respect.
Dimensions
Length:
4.80 m
4.48 m
Width:
1.81 m
1.73 m
Height:
1.45 m
1.42 m
Audi A6 is larger. Audi A6 is 32 cm longer than the Audi A4, 8 cm wider, while the height of Audi A6 is 3 cm higher.
Trunk capacity:
551 litres
440 litres
Audi A6 has more luggage capacity. Audi A6 has 111 litres more trunk space than the Audi A4.
Turning diameter:
11.7 meters
11.1 meters
The turning circle of the Audi A6 is 0.6 metres more than that of the Audi A4, which means Audi A6 can be harder to manoeuvre in tight streets and parking spaces.
Audi A4 has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for Audi A6, so Audi A4 quality could be a bit better.
