2026 BMW X3 M50 vs 2027 Mercedes-Benz GLC300
| EPA figure | 2026 BMW X3 M50 | 2027 Mercedes-Benz GLC300 |
|---|---|---|
| Model year | 2026 | 2027 |
| Body · drive | SUV · All-Wheel Drive · Hybrid | SUV · Rear-Wheel Drive · Hybrid |
| Combined MPG | 27 | 27 |
| City / highway MPG | 25 / 30 | 24 / 32 |
| Fuel a year | $3,050 | $3,050 |
| Tailpipe CO₂ (g/mi) | 320 | 323 |
| 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.