Audi S8
Combined fuel consumption in l/100 km: 9.6 – 9.4** (24.5 – 25.0 US mpg);
Combined CO2 emissions in g/km: 220 – 216** (354.1 – 347.6 g/mi)

Audi S8 plus:
Combined fuel consumption in l/100 km: 10.0 (23.5 US mpg);
Combined CO2 emissions in g/km: 231 (371.8 g/mi)

** Fuel consumption and CO2 emissions data as well as the efficiency classes are dependent on the choice of wheels and tyres.