Audi A6 is more dynamic to drive. Audi A6 engine produces 47 HP more power than Audi A4, whereas torque is 35 NM more than Audi A4. Thanks to more power Audi A6 reaches 100 km/h speed 0.9 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
9.9
8.0
Real fuel consumption:
10.0 l/100km
8.9 l/100km
The Audi A4 is a better choice when it comes to fuel economy. By specification Audi A6 consumes 1.9 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 285 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A6 consumes 1.1 litres more fuel per 100 km than the Audi A4.
Fuel tank capacity:
70 litres
70 litres
Full fuel tank distance:
700 km in combined cycle
870 km in combined cycle
970 km on highway
1160 km on highway
700 km with real consumption
780 km with real consumption
Audi A4 gets more mileage on one fuel tank.
Engines
Average engine lifespan:
390'000 km
420'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
4 years
8 years
Engine spread:
Used only for this car
Installed on at least 2 other car models, including Volkswagen Passat, Audi A6
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.
Audi A6 2005 2.4 engine: The BDW engine's timing chain, expected to be long-lasting, typically lasts only 100,000–150,000 km, depending on driving habits. If a cold engine produces a distinct rattling sound, the chain may have ... More about Audi A6 2005 2.4 engine
Dimensions
Length:
4.93 m
4.59 m
Width:
1.86 m
1.77 m
Height:
1.46 m
1.43 m
Audi A6 is larger. Audi A6 is 34 cm longer than the Audi A4, 9 cm wider, while the height of Audi A6 is 3 cm higher.
Trunk capacity:
565 litres
442 litres
Audi A6 has more luggage capacity. Audi A6 has 123 litres more trunk space than the Audi A4.
Turning diameter:
12 meters
11.1 meters
The turning circle of the Audi A6 is 0.9 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.
