Most fuel-efficient cars of 2021
Among 287 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 10.2 l/100km. The spread from best to worst is 3.2–23.5 l/100km. Electric vehicles are ranked separately by range.
Ranked287one per model family
Average10.2 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 | -69% | — | 1,966.3 kg | — | — |
| 2 | 2021 Hyundai Nexo Blue | 3.9 l/100km | -62% | — | 1,867.4 kg | — | — |
| 3 | 2021 Hyundai Ioniq Blue | 4 l/100km | -61% | 93.8 g/km | 1,412.9 kg | — | — |
| 4 | 2021 Toyota Prius Eco | 4.2 l/100km | -59% | 98.2 g/km | 1,456 kg | — | — |
| 5 | 2021 Hyundai Elantra Hybrid Blue | 4.4 l/100km | -57% | 102.5 g/km | 1,392.1 kg | — | — |
| 6 | 2021 Honda Insight | 4.5 l/100km | -56% | 105.6 g/km | 1,382 kg | 3 | 5 |
| 7 | 2021 Hyundai Sonata Hybrid Blue | 4.5 l/100km | -56% | 106.9 g/km | 1,544.5 kg | — | — |
| 8 | 2021 Toyota Camry Hybrid LE | 4.5 l/100km | -56% | 105.6 g/km | 1,687.4 kg | — | — |
| 9 | 2021 Toyota Corolla Hybrid | 4.5 l/100km | -56% | 105.6 g/km | 1,456 kg | — | 5 |
| 10 | 2021 Kia Niro FE | 4.7 l/100km | -54% | 111.2 g/km | 1,485.1 kg | — | — |
| 11 | 2021 Honda Accord Hybrid | 4.9 l/100km | -52% | 113.7 g/km | 1,530 kg | 3 | 5 |
| 12 | 2021 Lexus ES 300h | 5.3 l/100km | -48% | 125.5 g/km | 1,687.4 kg | — | 5 |
| 13 | 2021 Toyota Avalon Hybrid Xle | 5.3 l/100km | -48% | 124.9 g/km | 1,687.4 kg | — | — |
| 14 | 2021 Honda Clarity Plug-in Hybrid | 5.6 l/100km | -45% | 35.4 g/km | 1,843 kg | — | — |
| 15 | 2021 Lexus UX 250h | 5.6 l/100km | -45% | 129.9 g/km | 1,635 kg | — | 5 |
| 16 | 2021 Ford Escape FWD Hev | 5.7 l/100km | -44% | 136.7 g/km | 1,762 kg | — | 5 |
| 17 | 2021 Toyota RAV4 Hybrid AWD | 5.9 l/100km | -42% | 138.6 g/km | 1,750.9 kg | 1 | 5 |
| 18 | 2021 Mitsubishi Mirage | 6 l/100km | -41% | 139.8 g/km | 940 kg | — | 4 |
| 19 | 2021 Toyota Venza AWD | 6 l/100km | -41% | 141.1 g/km | 1,745 kg | — | — |
| 20 | 2021 Honda CR-V Hybrid AWD | 6.2 l/100km | -39% | 145.4 g/km | — | 3 | 5 |
| 21 | 2021 Kia Sorento Hybrid | 6.4 l/100km | -37% | 150.4 g/km | 1,787 kg | 2 | 4 |
| 22 | 2021 Kia Rio | 6.5 l/100km | -36% | 154.7 g/km | 1,156 kg | 2 | — |
| 23 | 2021 Toyota Highlander Hybrid | 6.5 l/100km | -36% | 152.2 g/km | 2,084.3 kg | 4 | 5 |
| 24 | 2021 Toyota Sienna Hybrid 2WD | 6.5 l/100km | -36% | 152.9 g/km | 2,096 kg | 4 | 5 |
| 25 | 2021 Kia Forte FE | 6.7 l/100km | -34% | 159.1 g/km | 1,310 kg | — | — |
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 cars of 2022 Ranking
- Most fuel-efficient cars of 2020 Ranking
- Most fuel-efficient cars of 2025 Ranking