Audi A6 engine produces 8 HP less power than Audi A8, the torque is the same for both cars. Despite less power, Audi A6 reaches 100 km/h speed 0.5 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
8.4
8.4
Fuel tank capacity:
80 litres
90 litres
Full fuel tank distance:
950 km in combined cycle
1070 km in combined cycle
1230 km on highway
1400 km on highway
850 km with real consumption
1010 km with real consumption
Audi A8 gets more mileage on one fuel tank.
Drive type
Wheel drive type:
4x4 - AWD (all-wheel-drive)
All wheel drive (AWD, 4x4)
Engines
Average engine lifespan:
470'000 km
460'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
3 years
7 years
Engine spread:
Used also on Volkswagen Phaeton
Installed on at least 2 other car models, including Audi A6, Audi A4
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Audi A8 might be a better choice in this respect.
Dimensions
Length:
4.92 m
5.05 m
Width:
1.86 m
1.89 m
Height:
1.46 m
1.44 m
Audi A6 is smaller, but slightly higher. Audi A6 is 13 cm shorter than the Audi A8, 3 cm narrower, while the height of Audi A6 is 2 cm higher.
Trunk capacity:
546 litres
500 litres
Audi A6 has more luggage capacity. Even though the car is shorter, Audi A6 has 46 litres more trunk space than the Audi A8. The Audi A8 may have more interior space, so the cabin could be more spacious and more comfortable for the driver and passengers.
Turning diameter:
12 meters
12.1 meters
The turning circle of the Audi A6 is 0.1 metres less than that of the Audi A8.
Audi A8 has fewer problems. According to annual technical inspection data Audi A6 has serious deffects in 25 percent more cases than Audi A8, so Audi A8 quality is probably significantly better
