Car specifications
Most economical new cars
The new cars with the best official fuel economy in the Vehicle Certification Agency’s data for 15 September 2026, by type of car. Figures are official WLTP laboratory results, grouped into bands because VCA advises against ranking cars with similar figures.
VCA lists 5,750 versions of new cars with official figures in its data for 15 September 2026. The best petrol cars reach 57.6 mpg and the best self-charging hybrids 76.3 mpg on the WLTP test. Below, the 94 models in the top bands of each type are listed alphabetically within their band. VCA’s latest data has few or no versions from Ford, Infiniti, Jaguar, Land Rover and SsangYong, which it listed before, so their cars are not included.
- Petrol 57.6 mpg best official figure; median 45.6 mpg
- Diesel 65.8 mpg best official figure; median 52.3 mpg
- Mild hybrid 65.9 mpg best official figure; median 44.8 mpg
- Hybrid (self-charging) 76.3 mpg best official figure; median 56.5 mpg
- Electric 5.7 miles per kWh at best; median 3.7
Most economical petrol cars
1,021 petrol versions of 157 models are listed. Half reach at least 45.6 mpg; the best reach 57.6 mpg. Each model is shown with its best version.
| Model | Best mpg | CO2 g/km | Versions |
|---|---|---|---|
| Band 1: 55.0 to 59.9 mpg | |||
| Hyundai i10 | 55.4 | 116 | 20 |
| Peugeot 208 | 57.6 | 110 | 6 |
| Skoda Fabia | 56.8 | 112 | 15 |
| Skoda Scala | 55.7 | 115 | 14 |
| Vauxhall Corsa | 57.6 | 110 | 15 |
| Volkswagen Polo | 55.4 | 116 | 12 |
| Band 2: 50.0 to 54.9 mpg | |||
| Audi A1 | 52.3 | 123 | 5 |
| Audi A3 | 52.3 | 122 | 5 |
| Chrysler Avenger | 53.3 | 120 | 1 |
| Citroën C3 | 54.2 | 117 | 9 |
| Citroën C4 | 54.7 | 117 | 6 |
| Dacia Bigster | 52.3 | 123 | 4 |
| Dacia Duster | 51.4 | 124 | 38 |
| Dacia Sandero | 54.3 | 118 | 43 |
| Hyundai Bayon | 51.4 | 124 | 10 |
| Hyundai i20 | 53.3 | 120 | 21 |
| Kia Picanto | 54.3 | 116 | 26 |
| Kia Stonic | 51.4 | 125 | 6 |
| Nissan Micra | 53.3 | 120 | 7 |
| Peugeot 2008 | 52.3 | 122 | 10 |
| Renault Clio | 54.3 | 118 | 15 |
| SEAT Arona | 53.3 | 120 | 14 |
| SEAT Ibiza | 52.3 | 123 | 11 |
| SEAT Leon | 50.4 | 128 | 6 |
| Skoda Kamiq | 52.4 | 122 | 14 |
| Skoda Octavia | 54.0 | 119 | 8 |
| Vauxhall Astra | 53.3 | 120 | 6 |
| Vauxhall Mokka | 54.7 | 117 | 11 |
| Volkswagen Golf | 53.3 | 120 | 17 |
| Volkswagen T-Cross | 52.3 | 124 | 16 |
| Volkswagen Taigo | 53.3 | 120 | 14 |
Most economical diesel cars
166 diesel versions of 43 models are listed. Half reach at least 52.3 mpg; the best reach 65.8 mpg. Each model is shown with its best version.
| Model | Best mpg | CO2 g/km | Versions |
|---|---|---|---|
| Band 1: 65.0 to 69.9 mpg | |||
| Skoda Octavia | 65.8 | 113 | 10 |
| Band 2: 60.0 to 64.9 mpg | |||
| Citroën C3 | 64.0 | 116 | 1 |
| Mercedes-Benz CLE-Class | 60.1 | 122 | 2 |
| SEAT Leon | 61.4 | 120 | 5 |
| Volkswagen Golf | 64.2 | 114 | 6 |
| Band 3: 55.0 to 59.9 mpg | |||
| Audi A3 | 58.9 | 125 | 2 |
| Audi A5 | 57.6 | 128 | 4 |
| BMW X1 | 56.5 | 131 | 3 |
| Citroën Berlingo | 57.4 | 129 | 8 |
| Dacia Duster | 58.9 | 125 | 21 |
| Mercedes-Benz A-Class | 58.9 | 127 | 6 |
| Mercedes-Benz B-Class | 55.4 | 133 | 1 |
| Mercedes-Benz CLA-Class | 56.5 | 130 | 2 |
| Skoda Superb | 57.6 | 129 | 12 |
| Volkswagen T-Roc | 56.5 | 130 | 2 |
Most economical mild hybrid cars
722 mild hybrid versions of 79 models are listed. Half reach at least 44.8 mpg; the best reach 65.9 mpg. Each model is shown with its best version.
| Model | Best mpg | CO2 g/km | Versions |
|---|---|---|---|
| Band 1: 65.0 to 69.9 mpg | |||
| Peugeot 208 | 65.9 | 96 | 3 |
| Vauxhall Corsa | 65.9 | 96 | 4 |
| Band 2: 60.0 to 64.9 mpg | |||
| Alfa Romeo Junior | 62.8 | 102 | 2 |
| BMW X1 | 60.1 | 124 | 7 |
| Chrysler Avenger | 62.8 | 102 | 2 |
| Citroën C4 | 62.8 | 102 | 6 |
| DS DS3 | 62.8 | 102 | 1 |
| Fiat 600 | 62.8 | 102 | 4 |
| Mercedes-Benz C-Class | 62.8 | 119 | 14 |
| Mercedes-Benz E-Class | 60.1 | 122 | 12 |
| Peugeot 2008 | 62.8 | 102 | 3 |
| Suzuki Swift | 64.2 | 99 | 5 |
| Vauxhall Astra | 62.6 | 102 | 1 |
| Vauxhall Mokka | 62.8 | 102 | 4 |
Most economical hybrid (self-charging) cars
548 hybrid (self-charging) versions of 67 models are listed. Half reach at least 56.5 mpg; the best reach 76.3 mpg. Each model is shown with its best version.
| Model | Best mpg | CO2 g/km | Versions |
|---|---|---|---|
| Band 1: 75.0 to 79.9 mpg | |||
| Mazda 2 | 76.3 | 85 | 20 |
| Band 2: 70.0 to 74.9 mpg | |||
| Toyota Aygo | 74.3 | 87 | 7 |
| Toyota Yaris | 70.6 | 91 | 56 |
| Band 3: 65.0 to 69.9 mpg | |||
| Renault Captur | 65.7 | 97 | 10 |
| Renault Clio | 67.3 | 95 | 21 |
| Renault Symbioz | 65.7 | 97 | 4 |
| Band 4: 60.0 to 64.9 mpg | |||
| Dacia Bigster | 61.4 | 105 | 3 |
| Dacia Duster | 61.4 | 105 | 11 |
| Dacia Jogger | 61.4 | 104 | 7 |
| Honda Civic | 60.1 | 108 | 3 |
| Honda Jazz | 62.8 | 102 | 5 |
| Hyundai Kona | 60.1 | 106 | 19 |
| Kia Niro | 64.2 | 100 | 6 |
| Lexus LBX | 62.7 | 102 | 21 |
| MG 3 | 64.2 | 100 | 4 |
| Renault Arkana | 60.1 | 105 | 15 |
| Renault Austral | 61.4 | 103 | 12 |
| Renault Rafale | 60.1 | 105 | 1 |
| Toyota C-HR | 60.1 | 105 | 14 |
| Toyota Corolla | 64.2 | 100 | 26 |
Most economical electric cars
940 electric versions of 136 models are listed. Half reach at least 3.7 miles per kWh; the best reach 5.7 miles per kWh. Each model is shown with its best version.
| Model | Best miles per kWh | Versions |
|---|---|---|
| Band 1: 5.5 to 5.9 miles per kWh | ||
| MINI Aceman | 5.7 | 9 |
| Band 2: 5.0 to 5.4 miles per kWh | ||
| Dacia Spring | 5.0 | 7 |
| Mercedes-Benz CLA-Class | 5.0 | 8 |
| Tesla Model 3 | 5.1 | 15 |
| Band 3: 4.5 to 4.9 miles per kWh | ||
| Fiat 500 | 4.7 | 2 |
| MINI Cooper | 4.5 | 11 |
| MINI Countryman | 4.8 | 7 |
| Peugeot 208 | 4.5 | 6 |
| Subaru Uncharted | 4.5 | 3 |
| Tesla Model Y | 4.9 | 26 |
| Toyota BZ4X | 4.5 | 16 |
| Toyota C-HR | 4.6 | 7 |
| Vauxhall Corsa | 4.5 | 8 |
| Volkswagen ID7 | 4.5 | 6 |
How we band the figures
These are official figures from laboratory type-approval tests on the WLTP cycle. VCA says they may not be achieved in real-world driving, and that they should not be used to rank vehicles with similar figures. So we do not put one car above another on a fraction of a mile per gallon: models are grouped into bands of 5 mpg (0.5 miles per kWh for electric cars), bands are listed from best to worst, and models within a band are in alphabetical order.
A model’s figure is its best version in the class; other versions of the same model can be much less economical. Types follow VCA’s powertrain labels: mild hybrids have a small battery that assists the engine, self-charging hybrids can drive on battery power. Plug-in hybrids are not banded, because their official figures depend on how much of the test is driven on battery power.
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| Official fuel economy and CO2 | Car fuel and emissions information Vehicle Certification Agency | July 2000 to 15 September 2026 | 114,679 VCA records (a version in several snapshots counts each time) | 15 September 2026 |
- Latest VCA data: 15 September 2026. Every version with an official combined figure is included.
- Models are matched to our car pages by name where we can; others keep VCA’s model name.
- VCA’s latest data has few or no versions from Ford, Infiniti, Jaguar, Land Rover and SsangYong, although earlier data listed them.
- VCA’s car fuel data is Crown copyright. Its reuse licence is still being confirmed with VCA.
Source: Vehicle Certification Agency car fuel data. Crown copyright.