2018 BMW M3 vs 2018 BMW M4 Convertible
| EPA figure | 2018 BMW M3 | 2018 BMW M4 Convertible |
|---|---|---|
| Model year | 2018 | 2018 |
| Body · drive | Compact · Rear-Wheel Drive · Gas | Subcompact · Rear-Wheel Drive · Gas |
| Combined MPG | 20 | 19 |
| City / highway MPG | 17 / 25 | 16 / 22 |
| Fuel a year | $4,100 | $4,350 |
| Tailpipe CO₂ (g/mi) | 439 | 481 |
| Engine | 3.0 L 6-cyl turbo | 3.0 L 6-cyl turbo |
| Transmission | Manual 6-spd | Automatic (AM-S7) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.