List of May 2008 UK fuel economy ratings (N–S) List of May 2008 UK fuel economy ratings (N–S) List of May 2008 UK fuel economy ratings (N–S)

| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Porsche | 911 | A5 | 3824 | Petrol | 17.9 | 8.4 | 11.7 | 15.8 | 33.6 | 24.1 | 13.2 | 28.0 | 20.1 | 283 | G |
| Porsche | 911 | M6 | 3824 | Petrol | 17.3 | 8.4 | 11.6 | 16.3 | 33.6 | 24.4 | 13.6 | 28.0 | 20.3 | 280 | G |
| Porsche | 911 | M6 | 3596 | Petrol | 16.6 | 8.4 | 11.3 | 17.0 | 33.6 | 25.0 | 14.2 | 28.0 | 20.8 | 272 | G |
| Porsche | 911 | A5 | 3596 | Petrol | 17.4 | 8.6 | 11.6 | 16.2 | 32.8 | 24.4 | 13.5 | 27.3 | 20.3 | 280 | G |
| Porsche | 911 | M6 | 3824 | Petrol | 17.5 | 8.5 | 11.8 | 16.1 | 33.2 | 23.9 | 13.4 | 27.6 | 19.9 | 285 | G |
| Porsche | 911 | A5 | 3824 | Petrol | 18.0 | 8.6 | 11.9 | 15.7 | 32.8 | 23.7 | 13.1 | 27.3 | 19.7 | 286 | G |
| Porsche | 911 | A5 | 3600 | Petrol | 19.8 | 9.6 | 13.6 | 14.3 | 29.4 | 20.8 | 11.9 | 24.5 | 17.3 | 326 | G |