2012 Mercedes-Benz CLS-Class
3 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| CLS550 | 17 | 25 | 20 | Premium Gasoline | Rear-Wheel Drive | 4.7L 8-cyl Turbo | Automatic 7-spd |
| CLS550 4matic | 16 | 25 | 19 | Premium Gasoline | 4-Wheel Drive | 4.7L 8-cyl Turbo | Automatic 7-spd |
| CLS63 AMG | 16 | 25 | 19 | Premium Gasoline | Rear-Wheel Drive | 5.5L 8-cyl Turbo | Automatic 7-spd |