Audi TT Roadster 2.0 TDI ultra (135 kW):
Combined fuel consumption in l/100 km: 4.5 – 4.3** (52.3 – 54.7 US mpg);
Combined CO2 emissions in g/km: 118 – 114** (189.9 – 183.5 g/mi)

Audi TT Roadster 2.0 TFSI (169 kW):
Combined fuel consumption in l/100 km: 6.1 – 6.0** (38.6 – 39.2);
Combined CO2 emissions in g/km: 142 – 140** (228.5 – 225.3 g/mi)

Audi TT Roadster 2.0 TFSI S tronic (169 kW):
Combined fuel consumption in l/100 km: 6.6 – 6.5** (35.6 – 36.2);
Combined CO2 emissions in g/km: 153 – 151** (246.2 – 243.0 g/mi)

Audi TT Roadster 2.0 TFSI quattro S tronic (169 kW):
Combined fuel consumption in l/100 km: 6.8 – 6.7** (34.6 – 35.1);
Combined CO2 emissions in g/km: 156 – 154** (251.1 – 247.8 g/mi)

Audi TTS Roadster 2.0 TFSI quattro (228 kW):
Combined fuel consumption in l/100 km: 7.5 – 7.3** (31.4 – 32.2);
Combined CO2 emissions in g/km: 174 – 169** (280.0 – 272.0 g/mi)

Audi TTS Roadster 2.0 TFSI quattro S tronic (228 kW):
Combined fuel consumption in l/100 km: 7.1 – 6.9** (33.1 – 34.1 US mpg);
Combined CO2 emissions in g/km: 166 – 159** (267.2 – 255.9 g/mi)

Audi TT:
Combined fuel consumption in l/100 km: 7.5 – 4.2** (31.4 – 56.0 US mpg);
Combined CO2 emissions in g/km: 174 – 110** (280.0 – 177.0 g/mi)

Audi R8:
Combined fuel consumption in l/100 km: 14.9 – 12.4** (15.8 – 19.0 US mpg);
Combined CO2 emissions in g/km: 349 – 289** (561.7 – 465.1 g/mi)

**The fuel consumption and the CO2 emissions of a vehicle vary due to the choice of wheels and tires. They not only depend on the efficient utilization of the fuel by the vehicle, but are also influenced by driving behavior and other non-technical factors.