2017 Mercedes-Benz S550 Convertible vs 2017 Mercedes-Benz SL450
| EPA figure | 2017 Mercedes-Benz S550 Convertible | 2017 Mercedes-Benz SL450 |
|---|---|---|
| Model year | 2017 | 2017 |
| Body · drive | Subcompact · Rear-Wheel Drive · Gas | Two Seaters · Rear-Wheel Drive · Gas |
| Combined MPG | 20 | 23 |
| City / highway MPG | 17 / 25 | 20 / 28 |
| Fuel a year | $4,100 | $3,550 |
| Tailpipe CO₂ (g/mi) | 445 | 383 |
| Engine | 4.7 L 8-cyl turbo | 3.0 L 6-cyl turbo |
| Transmission | Automatic 9-spd | Automatic 9-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.