Audi A6 engine produces 5 HP less power than Audi A8, the torque is the same for both cars. Despite less power, Audi A6 reaches 100 km/h speed 0.7 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
9.6
9.8
Real fuel consumption:
11.9 l/100km
12.0 l/100km
By specification Audi A6 consumes 0.2 litres less fuel per 100 km than the Audi A8, which means that by driving the Audi A6 over 15,000 km in a year you can save 30 litres of fuel. By comparing actual fuel consumption based on user reports, Audi A6 consumes 0.1 litres less fuel per 100 km than the Audi A8.
Fuel tank capacity:
70 litres
90 litres
Full fuel tank distance:
720 km in combined cycle
910 km in combined cycle
980 km on highway
1280 km on highway
580 km with real consumption
750 km with real consumption
Audi A8 gets more mileage on one fuel tank.
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.
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
