EPA-verified MPG for all 23 variants (2015–2021)
i3 by model year — click a row to jump to that year
| Year | Best MPG | Avg MPG | Variants |
|---|---|---|---|
| 2021 | 113 MPG | 72 MPG | 4 |
| 2020 | 113 MPG | 72 MPG | 4 |
| 2019 | 113 MPG | 72 MPG | 4 |
| 2018 | 118 MPG | 75 MPG | 4 |
| 2017 | 124 MPG | 92 MPG | 3 |
| 2016 | 124 MPG | 82 MPG | 2 |
| 2015 | 124 MPG | 82 MPG | 2 |