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 | Boxster RS60 Spyder | M6 | 3387 | Petrol | 15.3 | 7.8 | 10.6 | 18.5 | 36.2 | 26.7 | 15.4 | 30.1 | 22.2 | 254 | G |
| Porsche | Boxster RS60 Spyder | A5 | 3387 | Petrol | 16.3 | 7.9 | 11.0 | 17.3 | 35.8 | 25.7 | 14.4 | 29.8 | 21.4 | 262 | G |
| Porsche | 911 | M6 | 3596 | Petrol | 16.1 | 8.1 | 11.0 | 17.5 | 34.9 | 25.7 | 14.6 | 29.1 | 21.4 | 266 | G |
| Porsche | 911 | A5 | 3596 | Petrol | 16.5 | 8.1 | 11.2 | 17.1 | 34.9 | 25.2 | 14.2 | 29.1 | 21.0 | 270 | G |
| Porsche | 911 | M6 | 3596 | Petrol | 16.4 | 8.1 | 11.2 | 17.2 | 34.9 | 25.2 | 14.3 | 29.1 | 21.0 | 270 | G |
| Porsche | 911 | A5 | 3596 | Petrol | 17.0 | 8.1 | 11.4 | 16.6 | 34.9 | 24.8 | 13.8 | 29.1 | 20.7 | 275 | G |
| Porsche | 911 | M6 | 3824 | Petrol | 17.1 | 8.4 | 11.5 | 16.5 | 33.6 | 24.6 | 13.7 | 28.0 | 20.5 | 277 | G |