| engine type | Original performance | Performance after tuning | Vmax | More efficient | price |
|---|---|---|---|---|---|
| SL 280 facelift | 170 kW (231 hp) 300Nm | 185 kW (252 hp) 353Nm | * | 21 hp | 599 |
| SL 350 | 180 kW (245 hp) 350Nm | 199 kW (270 hp) 390Nm | * | 25 hp | 699 |
| SL 350 | 200 kW (272 hp) 350Nm | 218 kW (296 hp) 380Nm | * | 24 hp | 699 |
| SL 350 facelift | 232 kW (316 hp) 360Nm | 250 kW (342 hp) 385Nm | * | 26 hp | 599 |
| SL 500 | 225 kW (306 hp) 460Nm | 241 kW (330 hp) 490Nm | * | 24 hp | 599 |
| SL 500 5.5 | 285 kW (388 hp) 530Nm | 304 kW (413 hp) 570Nm | * | 25 hp | 999 |
| SL 55 AMG | 350 kW (476 hp) 700Nm | 376 kW (530 hp) 820Nm | * | 49 hp | 799 |
| SL 55 AMG | 368 kW (500 hp) 700Nm | 393 kW (535 hp) 820Nm | * | 30 hp | 799 |
| SL 55 AMG | 380 kW (517 hp) 720Nm | 399 kW (542 hp) 820Nm | * | 25 hp | 799 |
| SL 55 AMG with wheel | 380 kW (517 hp) 720Nm | 428 kW (582 hp) 850Nm | * | 65 hp | 2599 |
| SL 600 | 368 kW (500 hp) 800Nm | 420 kW (578 hp) 930Nm | * | 80 hp | 1199 |
| SL 600 | 380 kW (517 hp) 830Nm | 432 kW (588 hp) 930Nm | * | 71 hp | 1199 |
| SL 65 AMG | 450 KW (612 HP) 1000Nm | 500 KW (680 HP) 1110Nm | * | 68 hp | 1499 |
| SL 63 AMG | 386 kW (525 hp) 630Nm | 407 kW (555 hp) 660Nm | * | 30 hp | 1499 |