Audi R8 Spyder V10:
Combined fuel consumption in l/100 km: 11.7 (20.1 US mpg);
Combined CO2 emissions in g/km: 277 (445.8 g/mi)

Audi R8 Coupé V10:
Combined fuel consumption in l/100 km: 11.4 (20.6 US mpg):
Combined CO2 emissions in g/km: 272 (437.7 g/mi)