Most fuel-efficient small cars of 2021
Among 71 small cars from 2021 in the database (one per model family), the 2021 Toyota Mirai Xle is the most fuel-efficient at 3.2 l/100km, against a class average of 9.5 l/100km. The spread from best to worst is 3.2–16.8 l/100km. Electric vehicles are ranked separately by range.
Ranked71one per model family
Average9.5 l/100km
Leader2021 Toyota Mirai Xle
Top 10
Full ranking
| # | Vehicle | Combined | vs avg | CO2 | Weight | Recalls | NCAP |
|---|---|---|---|---|---|---|---|
| 1 | 2021 Toyota Mirai Xle | 3.2 l/100km | -66% | — | 1,966.3 kg | — | — |
| 2 | 2021 Toyota Corolla Hybrid | 4.5 l/100km | -53% | 105.6 g/km | 1,456 kg | — | 5 |
| 3 | 2021 Honda Insight Touring | 4.9 l/100km | -48% | 114.3 g/km | 1,383.9 kg | 3 | 5 |
| 4 | 2021 Lexus UX 250h | 5.6 l/100km | -41% | 129.9 g/km | 1,635 kg | — | 5 |
| 5 | 2021 Mitsubishi Mirage | 6 l/100km | -37% | 139.8 g/km | 940 kg | — | 4 |
| 6 | 2021 Kia Rio | 6.5 l/100km | -31% | 154.7 g/km | 1,156 kg | 2 | — |
| 7 | 2021 Mazda 2 | 6.7 l/100km | -29% | 157.2 g/km | 1,661 kg | — | — |
| 8 | 2021 Volkswagen Jetta | 6.9 l/100km | -27% | 161.6 g/km | 1,350 kg | 4 | 5 |
| 9 | 2021 Chevrolet Spark | 7.1 l/100km | -25% | 165.3 g/km | 1,019 kg | — | — |
| 10 | 2021 Hyundai Accent | 7.1 l/100km | -25% | 169.6 g/km | 1,230.1 kg | 4 | 4 |
| 11 | 2021 Volkswagen Golf | 7.1 l/100km | -25% | 165.9 g/km | 1,318 kg | 1 | 5 |
| 12 | 2021 BMW I3 With Range Extender | 7.6 l/100km | -20% | 13.7 g/km | 1,500.9 kg | — | — |
| 13 | 2021 BMW I3s With Range Extender | 7.6 l/100km | -20% | 13.7 g/km | 1,500.9 kg | — | — |
| 14 | 2021 Mazda CX-3 2WD | 7.6 l/100km | -20% | 179.6 g/km | 1,675.1 kg | 1 | 5 |
| 15 | 2021 BMW 330i | 7.8 l/100km | -18% | 185.2 g/km | 1,867 kg | 7 | — |
| 16 | 2021 MINI Cooper Convertible | 7.8 l/100km | -18% | 181.4 g/km | 1,425.6 kg | — | — |
| 17 | 2021 Mazda 3 4-Door 2WD | 7.8 l/100km | -18% | 188.3 g/km | 1,330 kg | — | — |
| 18 | 2021 Nissan Versa | 7.8 l/100km | -18% | 183.9 g/km | 1,194 kg | 3 | 5 |
| 19 | 2021 Volvo S60 AWD PHEV | 7.8 l/100km | -18% | 96.3 g/km | — | — | — |
| 20 | 2021 BMW 430i Coupe | 8.1 l/100km | -15% | 188.9 g/km | 1,867 kg | — | — |
| 21 | 2021 Hyundai Veloster | 8.1 l/100km | -15% | 191.4 g/km | 1,285 kg | 1 | — |
| 22 | 2021 Lexus LC 500h | 8.1 l/100km | -15% | 188.3 g/km | 2,130 kg | — | — |
| 23 | 2021 Toyota C-HR | 8.1 l/100km | -15% | 189.5 g/km | 1,497 kg | 1 | 4 |
| 24 | 2021 Acura ILX | 8.4 l/100km | -11% | 196.4 g/km | 1,415 kg | — | 5 |
| 25 | 2021 Audi A4 quattro | 8.4 l/100km | -11% | 193.2 g/km | 1,725 kg | 4 | 5 |
Related rankings
How this ranking works
Values come from FuelEconomy.gov, EPA certification data and NHTSA records shown on each vehicle's page. Only the best-placed version of each model family is listed, so one model cannot fill the list. Electric vehicles are excluded from fuel-consumption rankings and ranked by range instead.
Related calculators
Fuel economy and trip costFuel economy unit converter · Trip fuel and cost · Annual savings from better economyFuel savings and break-evenBreak-even distance for a more economical vehicle · Fuel price at which two vehicles cost the same · Running cost per 100 kmPower-to-weightPower-to-weight ratio · Torque-to-weight ratio · Power needed for a target ratioEV range and consumptionDriving range from battery and consumption · Energy consumption unit converter · Battery health and capacity loss
Related pages
- 2025 Toyota Mirai Xle Car specs
- Toyota Mirai Xle Car specs
- 2024 Toyota Mirai Xle Car specs
- 2023 Toyota Mirai Xle Car specs
- Most fuel-efficient small cars of 2024 Ranking
- Most fuel-efficient small cars of 2020 Ranking
- Most fuel-efficient cars of 2021 Ranking