2005 BMW 645ci Convertible vs 2005 BMW M3
| EPA figure | 2005 BMW 645ci Convertible | 2005 BMW M3 |
|---|---|---|
| Model year | 2005 | 2005 |
| Body · drive | Subcompact · Rear-Wheel Drive · Gas | Subcompact · Rear-Wheel Drive · Gas |
| Combined MPG | 16 | 17 |
| City / highway MPG | 13 / 21 | 15 / 21 |
| Fuel a year | $5,150 | $4,850 |
| Tailpipe CO₂ (g/mi) | 555 | 523 |
| Engine | 4.4 L 8-cyl | 3.2 L 6-cyl |
| Transmission | Automatic (S6) | Automatic (S6) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.