2026 BMW M340i xDrive Sedan vs 2026 Mercedes-Benz C300
| EPA figure | 2026 BMW M340i xDrive Sedan | 2026 Mercedes-Benz C300 |
|---|---|---|
| Model year | 2026 | 2026 |
| Body · drive | Compact · All-Wheel Drive · Hybrid | Compact · Rear-Wheel Drive · Hybrid |
| Combined MPG | 29 | 29 |
| City / highway MPG | 26 / 33 | 25 / 35 |
| Fuel a year | $2,850 | $2,850 |
| Tailpipe CO₂ (g/mi) | 304 | 307 |
| Engine | 3.0 L 6-cyl turbo | 2.0 L 4-cyl turbo |
| Transmission | Automatic (S8) | Automatic 9-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.