2017 BMW 550i xDrive Gran Turismo vs 2017 BMW 640i xDrive Convertible
| EPA figure | 2017 BMW 550i xDrive Gran Turismo | 2017 BMW 640i xDrive Convertible |
|---|---|---|
| Model year | 2017 | 2017 |
| Body · drive | Large · All-Wheel Drive · Gas | Subcompact · All-Wheel Drive · Gas |
| Combined MPG | 18 | 22 |
| City / highway MPG | 15 / 24 | 19 / 28 |
| Fuel a year | $4,550 | $3,750 |
| Tailpipe CO₂ (g/mi) | 486 | 398 |
| Engine | 4.4 L 8-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.