| engine type | Original performance | Performance after tuning | Vmax | More efficient | price |
|---|---|---|---|---|---|
| CL 500 | 285 kW (388 hp) 530Nm | 300 kW (408 hp) 570Nm | * | 20 hp | 799 |
| CL 600 | 380 kW (517 hp) 830Nm | 430 kW (585 hp) 910Nm | * | 68 hp | 799 |
| CL 63 AMG | 386 kW (525 hp) 630Nm | 404 kW (550 hp) 660Nm | * | 25 hp | 799 |
| CL 63 AMG | 450 kW (612 hp) 1000Nm | 478 kW (650 hp) 1100Nm | * | 38 hp | 899 |