2025 BMW 840i xDrive Convertible vs 2025 Cadillac CT4 AWD
| EPA figure | 2025 BMW 840i xDrive Convertible | 2025 Cadillac CT4 AWD |
|---|---|---|
| Model year | 2025 | 2025 |
| Body · drive | Subcompact · All-Wheel Drive · Gas | Compact · All-Wheel Drive · Gas |
| Combined MPG | 24 | 24 |
| City / highway MPG | 21 / 29 | 21 / 29 |
| Fuel a year | $3,400 | $3,400 |
| Tailpipe CO₂ (g/mi) | 373 | 371 |
| Engine | 3.0 L 6-cyl turbo | 2.7 L 4-cyl turbo |
| Transmission | Automatic (S8) | Automatic (S10) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.