| engine type | Original performance | Performance after tuning | Vmax | More efficient | price |
|---|---|---|---|---|---|
| 2.0 16V | 84 kW (115 hp) 170Nm | 94 kW (128 hp) 185Nm | * | 13 hp | 420 |
| 2.2 GT Turbo | 108 kW (147 hp) 235Nm | 133 kW (182 hp) 265Nm | * | 45 hp | 499 |
| 2.5 V6 | 125 kW (170 hp) 220Nm | 138 kW (188 hp) 245Nm | * | 18 hp | 420 |