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:
Automatic
Automatic
Engine:
2.7 Petrol
2.8 Petrol
Performance
Power:
230 HP
193 HP
Torque:
310 NM
280 NM
Acceleration 0-100 km/h:
8.4 seconds
10.1 seconds
Audi A6 is more dynamic to drive. Audi A6 engine produces 37 HP more power than Audi A8, whereas torque is 30 NM more than Audi A8. Thanks to more power Audi A6 reaches 100 km/h speed 1.7 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
12.2
11.9
Audi A6 consumes 0.3 litres more fuel per 100 km than the Audi A8, which means that if you drive 15,000 km in a year, the Audi A6 could require 45 litres more fuel.
Fuel tank capacity:
70 litres
80 litres
Full fuel tank distance:
570 km in combined cycle
670 km in combined cycle
790 km on highway
950 km on highway
Audi A8 gets more mileage on one fuel tank.
Drive type
Wheel drive type:
4x4 - AWD (all-wheel-drive)
All wheel drive (AWD, 4x4)
Dimensions
Length:
4.80 m
5.03 m
Width:
1.81 m
1.88 m
Height:
1.48 m
1.44 m
Audi A6 is smaller, but slightly higher. Audi A6 is 23 cm shorter than the Audi A8, 7 cm narrower, while the height of Audi A6 is 4 cm higher.
Trunk capacity:
455 litres
525 litres
Audi A8 has more luggage space. Audi A6 has 70 litres less trunk space than the Audi A8.
Turning diameter:
11.7 meters
12.3 meters
The turning circle of the Audi A6 is 0.6 metres less than that of the Audi A8, which means Audi A6 can be easier to manoeuvre in tight streets and parking spaces.
Audi A8 has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for Audi A6, so Audi A8 quality could be a bit better.
