The wagon generally has more cargo space due to a larger trunk door opening, a roof that extends as far back as possible, and the ability to convert the rear of the passenger compartment into cargo space. Sedans tend to be quieter than wagons due to a more isolated rear area.
Gearbox:
Manual
Manual
Engine:
2.5 Diesel
2.5 Diesel
Performance
Power:
150 HP
155 HP
Torque:
310 NM
310 NM
Acceleration 0-100 km/h:
9.9 seconds
9.9 seconds
Audi A8 engine produces 5 HP less power than Audi A6, the torque is the same for both cars.
Fuel consumption
Fuel consumption (l/100km):
7.2
6.9
Audi A8 consumes 0.3 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 45 litres more fuel.
Fuel tank capacity:
90 litres
70 litres
Full fuel tank distance:
1250 km in combined cycle
1010 km in combined cycle
1630 km on highway
1320 km on highway
Audi A8 gets more mileage on one fuel tank.
Dimensions
Length:
5.03 m
4.80 m
Width:
1.88 m
1.81 m
Height:
1.44 m
1.48 m
Audi A8 is larger, but slightly lower. Audi A8 is 23 cm longer than the Audi A6, 7 cm wider, while the height of Audi A8 is 4 cm lower.
Trunk capacity:
525 litres
455 litres
Audi A8 has more luggage capacity. Audi A8 has 70 litres more trunk space than the Audi A6.
Turning diameter:
12.3 meters
11.7 meters
The turning circle of the Audi A8 is 0.6 metres more than that of the Audi A6, which means Audi A8 can be harder to manoeuvre in tight streets and parking spaces.
Audi A6 has fewer problems. According to annual technical inspection data Audi A8 has serious deffects in 20 percent more cases than Audi A6, so Audi A6 quality is probably better
