2021 BMW X3 sDrive30i vs 2021 BMW X4 M40i
| EPA figure | 2021 BMW X3 sDrive30i | 2021 BMW X4 M40i |
|---|---|---|
| Model year | 2021 | 2021 |
| Body · drive | SUV · Rear-Wheel Drive · Gas | SUV · All-Wheel Drive · Gas |
| Combined MPG | 27 | 23 |
| City / highway MPG | 25 / 29 | 21 / 27 |
| Fuel a year | $3,050 | $3,550 |
| Tailpipe CO₂ (g/mi) | 332 | 379 |
| Engine | 2.0 L 4-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.