2015 Mercedes-Benz SL-Class
4 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| SL400 | 20 | 27 | 23 | Premium Gasoline | Rear-Wheel Drive | 3L 6-cyl Turbo | Automatic 7-spd |
| SL550 | 18 | 24 | 20 | Premium Gasoline | Rear-Wheel Drive | 4.7L 8-cyl Turbo | Automatic 7-spd |
| SL63 AMG | 16 | 25 | 19 | Premium Gasoline | Rear-Wheel Drive | 5.5L 8-cyl Turbo | Automatic 7-spd |
| SL65 AMG | 14 | 21 | 17 | Premium Gasoline | Rear-Wheel Drive | 6L 12-cyl Turbo | Automatic 7-spd |