| engine type | Original performance | Performance after tuning | Vmax | More efficient | price |
|---|---|---|---|---|---|
| SL 500 BlueEff. | 300 kW (408 hp) 600Nm | 375 kW (510 hp) 810Nm | * | 102 hp | 999 |
| SL 63 AMG | 394 kW (537 hp) 800Nm | 434 kW (590 hp) 850Nm | * | 53 hp | 1499 |
| SL 63 AMG | 430 kW (585 hp) 900Nm | 478 kW (650 hp) 1020Nm | * | 75 hp | 1499 |