Audi A8 engine produces 5 HP more power than Audi A6, the torque is the same for both cars. Despite the higher power, Audi A8 reaches 100 km/h speed 0.7 seconds later.
Fuel consumption
Fuel consumption (l/100km):
9.8
9.6
Real fuel consumption:
12.0 l/100km
11.9 l/100km
By specification Audi A8 consumes 0.2 litres more fuel per 100 km than the Audi A6, which means that if you drive 15,000 km in a year, the Audi A8 could require 30 litres more fuel. By comparing actual fuel consumption based on user reports, Audi A8 consumes 0.1 litres more fuel per 100 km than the Audi A6.
Fuel tank capacity:
90 litres
70 litres
Full fuel tank distance:
910 km in combined cycle
720 km in combined cycle
1280 km on highway
980 km on highway
750 km with real consumption
580 km with real consumption
Audi A8 gets more mileage on one fuel tank.
Dimensions
Length:
5.05 m
4.92 m
Width:
1.89 m
1.86 m
Height:
1.44 m
1.46 m
Audi A8 is larger, but slightly lower. Audi A8 is 13 cm longer than the Audi A6, 3 cm wider, while the height of Audi A8 is 2 cm lower.
Trunk capacity:
500 litres
546 litres
Audi A6 has more luggage space. Despite its longer length, Audi A8 has 46 litres less trunk space than the Audi A6. This could mean that the Audi A8 uses more space in the cabin, so the driver and passengers could be more spacious and comfortable.
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