2018 BMW 540i xDrive vs 2018 BMW 640i xDrive Gran Coupe
| EPA figure | 2018 BMW 540i xDrive | 2018 BMW 640i xDrive Gran Coupe |
|---|---|---|
| Model year | 2018 | 2018 |
| Body · drive | Midsize · All-Wheel Drive · Gas | Compact · All-Wheel Drive · Gas |
| Combined MPG | 23 | 22 |
| City / highway MPG | 20 / 29 | 19 / 28 |
| Fuel a year | $3,550 | $3,750 |
| Tailpipe CO₂ (g/mi) | 380 | 396 |
| 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.