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Top 10 Fuel Efficient Cars
With saving money, reducing CO2 emissions and meeting greenhouse gas targets of paramount importance. The Mad Motorist has compiled a list of the 10 most fuel efficient cars available in the UK today. Not only that, we've worked out their UK Department of Transport Road Tax (Vehicle Excise Duty) charge to help you work out what you'll be expected to pay:
| Rank | Car Make & Model | Gearbox | Fuel | Tax Band & Cost | CO2 (g/km) |
| 1 | Smart fortwo cabrio cdi no DPF (175/195 Tyres on 15" Wheels at rear) | Auto | Diesel | A / £0 | 88 |
| 2 | Smart fortwo coupé cdi no DPF (175/195 Tyres on 15" Wheels at rear) | Auto | Diesel | A / £0 | 88 |
| 3 | Smart fortwo cabrio cdi no DPF 33 kW | Auto | Diesel | A / £0 | 88 |
| 4 | Smart fortwo coupé cdi no DPF 33kW | Auto | Diesel | A / £0 | 88 |
| 5 | Toyota Prius T3 | Auto | Petrol Hybrid | A / £0 | 89 |
| 6 | Seat New Ibiza Coupé 1.4 TDI (80PS) Ecomotive | Manual | Diesel | A / £0 | 98 |
| 7 | Seat New Ibiza 5 door 1.4 TDI 80PS Ecomotive | Manual | Diesel | A / £0 | 98 |
| 8 | Ford New Fiesta 1.6 Duratorq TDCi (90PS) (+DPF) (ECO) | Manual | Diesel | A / £0 | 98 |
| 9 | Toyota iQ 1.0 VVT-i | Manual | Petrol | A / £0 | 99 |
| 10 | Volkswagen Polo 1.4 TDI (80 PS) BlueMotion 1 with DPF | Manual | Diesel | A / £0 | 99 |