2021 BMW X3 M40i vs 2021 BMW X4 M
| EPA figure | 2021 BMW X3 M40i | 2021 BMW X4 M |
|---|---|---|
| Model year | 2021 | 2021 |
| Body · drive | SUV · All-Wheel Drive · Gas | SUV · All-Wheel Drive · Gas |
| Combined MPG | 23 | 16 |
| City / highway MPG | 21 / 27 | 14 / 19 |
| Fuel a year | $3,550 | $5,150 |
| Tailpipe CO₂ (g/mi) | 379 | 546 |
| Engine | 3.0 L 6-cyl turbo | 3.0 L 6-cyl turbo |
| Transmission | Automatic (S8) | Automatic (S8) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.