List of May 2008 UK fuel economy ratings (A–D) List of May 2008 UK fuel economy ratings (A–D) List of May 2008 UK fuel economy ratings (A–D)

| Manufacturer | Model | Transmission | Engine_Capacity | Fuel_Type | L_100km_Urban_Cold | L_100km_Extra_Urban | L_100km_Combined | mpg_UK_Urban_Cold | mpg_UK_Extra_Urban | mpg_UK_Combined | mpg_US_Urban | mpg_US_Extra_Urban | mpg_US_Combined | CO_2_g_km | Green_Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Audi | A6 Avant | M6 | 2393 | Petrol | 14.3 | 7.2 | 9.8 | 19.5 | 39.2 | 28.5 | 16.2 | 32.6 | 23.7 | 233 | G |
| Audi | A6 Avant | AV | 2393 | Petrol | 13.7 | 7.1 | 9.6 | 20.6 | 39.8 | 29.4 | 17.2 | 33.1 | 24.5 | 229 | G |
| Audi | A6 Avant | QM6 | 2393 | Petrol | 16.1 | 7.9 | 10.9 | 17.5 | 35.8 | 25.9 | 14.6 | 29.8 | 21.6 | 259 | G |
| Audi | A6 Avant | M6 | 2773 | Petrol | 13.0 | 6.4 | 8.8 | 21.7 | 44.1 | 32.1 | 18.1 | 36.7 | 26.7 | 209 | F |
| Audi | A6 Avant | AV | 2773 | Petrol | 12.8 | 6.5 | 8.8 | 22.1 | 43.5 | 32.1 | 18.4 | 36.2 | 26.7 | 209 | F |
| Audi | A6 Avant | QA6 | 2773 | Petrol | 13.8 | 7.3 | 9.7 | 20.5 | 38.7 | 29.1 | 17.1 | 32.2 | 24.2 | 231 | G |