Best Gas Mileage Cars
The 2025 Lucid Air leads at 146 mpg, followed by the Tesla Model 3 at 141 mpg.
These are the cars with the best EPA combined fuel economy on record. Every figure is an official EPA test result, not a manufacturer estimate, and each row links to that model's full year-by-year data.
| # | Vehicle | Combined MPG | City / Hwy | Fuel cost/yr | Fuel |
|---|---|---|---|---|---|
| 1 | 2025 Lucid Air | 146 mpg | 149 / 142 | $500 | Electricity |
| 2 | 2020 Tesla Model 3 | 141 mpg | 148 / 132 | $550 | Electricity |
| 3 | 2023 Hyundai Ioniq 6 | 140 mpg | 153 / 127 | $550 | Electricity |
| 4 | 2021 Hyundai Ioniq | 133 mpg | 145 / 121 | $550 | Electricity |
| 5 | 2026 Lexus ES | 127 mpg | 135 / 118 | $600 | Electricity |
| 6 | 2027 Audi A6 e-tron | 127 mpg | 134 / 120 | $600 | Electricity |
| 7 | 2026 Mercedes-Benz CLA-Class | 126 mpg | 127 / 124 | $600 | Electricity |
| 8 | 2025 Tesla Model S | 124 mpg | 132 / 116 | $600 | Electricity |
| 9 | 2024 BMW i4 | 120 mpg | 122 / 119 | $650 | Electricity |
| 10 | 2027 BMW i5 | 116 mpg | 120 / 113 | $650 | Electricity |
| 11 | 2025 Fiat 500e | 116 mpg | 127 / 104 | $650 | Electricity |
| 12 | 2022 Hyundai Ioniq 5 | 114 mpg | 132 / 98 | $700 | Electricity |
| 13 | 2025 Polestar 2 | 114 mpg | 123 / 104 | $650 | Electricity |
| 14 | 2021 Kandi K27 | 114 mpg | 127 / 102 | $650 | Electricity |
| 15 | 2020 BMW i3 | 113 mpg | 124 / 102 | $650 | Electricity |
| 16 | 2022 Nissan LEAF | 111 mpg | 123 / 99 | $700 | Electricity |
| 17 | 2022 MINI Cooper | 110 mpg | 119 / 100 | $700 | Electricity |
| 18 | 2023 Mercedes-Benz EQS | 103 mpg | 101 / 105 | $700 | Electricity |
| 19 | 2027 Audi S6 e-tron | 103 mpg | 106 / 100 | $750 | Electricity |
| 20 | 2025 Dodge Charger | 98 mpg | 104 / 91 | $800 | Electricity |
| 21 | 2023 Genesis G80 | 97 mpg | 105 / 89 | $750 | Electricity |
| 22 | 2024 Mercedes-Benz EQE | 96 mpg | 98 / 94 | $800 | Electricity |
| 23 | 2023 Genesis GV60 | 95 mpg | 103 / 86 | $800 | Electricity |
| 24 | 2025 Porsche Taycan | 93 mpg | 94 / 92 | $800 | Electricity |
| 25 | 2027 BMW i7 | 92 mpg | 91 / 92 | $850 | Electricity |
Source: EPA fuel economy test data via fueleconomy.gov, model years 2020 and later. One row per model, using its best-performing configuration.
How the combined mpg figures compare
Across the 25 vehicles ranked here, combined mpg runs from 92 mpg for the 2027 BMW i7 up to 146 mpg for the 2025 Lucid Air — a spread of 54 mpg, or about 59% between the bottom and top of the list. The midpoint sits at 114 mpg, so anything above that figure is in the upper half of what this dataset covers.
BMW places 4 models on the list, the most of any brand, ahead of Hyundai with 3 and Mercedes-Benz with 3. In total 15 manufacturers are represented, which is a useful read on how widely this level of combined mpg is available rather than being confined to a single badge.
Estimated annual fuel cost across these entries ranges from $500 to $850 on the EPA's standard 15,000-mile driving assumption — a difference of $350 a year, or roughly $1,750 over a typical five-year ownership period. Read the ranking column alongside that figure: the highest-rated vehicle is not automatically the cheapest to run once fuel type and tank size differ.
What this list doesn't tell you
Compact hybrids lead this category outright. Among non-hybrids, small-displacement turbocharged engines with a CVT or 8-plus-speed automatic post the strongest combined numbers.