Audi A6 and Audi A4 have the same engine power, the torque is the same for both cars. Audi A6 reaches 100 km/h speed 1.2 seconds later.
Fuel consumption
Fuel consumption (l/100km):
9.6
9.1
Real fuel consumption:
10.7 l/100km
10.1 l/100km
The Audi A4 is a better choice when it comes to fuel economy. By specification Audi A6 consumes 0.5 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 75 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A6 consumes 0.6 litres more fuel per 100 km than the Audi A4.
Fuel tank capacity:
70 litres
62 litres
Full fuel tank distance:
720 km in combined cycle
680 km in combined cycle
980 km on highway
890 km on highway
650 km with real consumption
610 km with real consumption
Audi A6 gets more mileage on one fuel tank.
Engines
Average engine lifespan:
460'000 km
440'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
4 years
9 years
Engine spread:
Used also on Audi A4
Installed on at least 9 other car models, including Volkswagen Passat, Volkswagen Golf, Skoda Octavia, Audi A3
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Audi A4 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.
