2021 rankings · Subcompact Cars
Most Fuel-Efficient 2021 Subcompact Cars, Ranked
We ranked all 34 EPA-rated 2021 subcompact cars by what they cost to fuel. The BMW i3 leads at about $805 a year (113 MPGe), while the Roush Performance Mustang is the most expensive to run at $3,950 (15 MPG). The median subcompact car costs $2,279 a year to fuel. The class includes 2 electric and 7 hybrid or plug-in models.
Fuel costs assume 15,000 miles a year at $3.10/gal regular, $3.95/gal premium and 18¢/kWh. Each model is shown in its most efficient configuration.
Top 15
Annual fuel cost (lower is better)All 34 models
| # | Model | Type | Combined | Range | Fuel / yr |
|---|---|---|---|---|---|
| 1 | BMW i3 | Electric | 113 MPGe | 153 mi | $805 |
| 2 | MINI Cooper EV | Electric | 108 MPGe | 110 mi | $845 |
| 3 | BMW i3 Plug-in Hybrid | Plug-in hybrid | 100 MPGe + 31 MPG | 200 mi | $948 |
| 4 | Chevrolet Spark | Gas | 33 MPG | — | $1,409 |
| 5 | Karma GS-6 | Plug-in hybrid | 70 MPGe + 26 MPG | 330 mi | $1,496 |
| 6 | Polestar 1 | Plug-in hybrid | 58 MPGe + 26 MPG | 470 mi | $1,720 |
| 7 | Ford Mustang | Gas | 25 MPG | — | $1,860 |
| 8 | MINI Cooper | Gas | 31 MPG | — | $1,911 |
| 9 | MINI John Cooper Works | Gas | 29 MPG | — | $2,043 |
| 10 | BMW 4 Series | Gas | 29 MPG | — | $2,043 |
| 11 | Lexus LC Hybrid | Hybrid | 29 MPG | — | $2,043 |
| 12 | Mercedes-Benz A-Class | Gas | 29 MPG | — | $2,043 |
| 13 | Chevrolet Camaro | Gas | 22 MPG | — | $2,114 |
| 14 | Audi A5 Hybrid | Hybrid | 28 MPG | — | $2,116 |
| 15 | BMW 2 Series | Gas | 28 MPG | — | $2,116 |
| 16 | Mercedes-Benz C-Class | Gas | 27 MPG | — | $2,194 |
| 17 | Mercedes-Benz E-Class Hybrid | Hybrid | 26 MPG | — | $2,279 |
| 18 | BMW M | Gas | 26 MPG | — | $2,279 |
| 19 | BMW 4 Series Hybrid | Hybrid | 26 MPG | — | $2,279 |
| 20 | BMW 8 Series | Gas | 25 MPG | — | $2,370 |
| 21 | Lexus RC | Gas | 25 MPG | — | $2,370 |
| 22 | Audi TTS | Gas | 25 MPG | — | $2,370 |
| 23 | Audi S5 | Gas | 23 MPG | — | $2,576 |
| 24 | Infiniti Q60 | Gas | 22 MPG | — | $2,693 |
| 25 | Porsche 911 | Gas | 21 MPG | — | $2,821 |
| 26 | Lotus Evora | Gas | 20 MPG | — | $2,962 |
| 27 | Aston Martin DB11 | Gas | 20 MPG | — | $2,962 |
| 28 | Bentley Continental | Gas | 19 MPG | — | $3,118 |
| 29 | Lexus LC | Gas | 19 MPG | — | $3,118 |
| 30 | Ferrari Portofino | Gas | 19 MPG | — | $3,118 |
| 31 | Ferrari Roma | Gas | 19 MPG | — | $3,118 |
| 32 | Nissan GT-R | Gas | 18 MPG | — | $3,292 |
| 33 | Aston Martin DBS | Gas | 17 MPG | — | $3,485 |
| 34 | Roush Performance Mustang | Gas | 15 MPG | — | $3,950 |