| engine type | Original performance | Performance after tuning | Vmax | More efficient | price |
|---|---|---|---|---|---|
| 1.6 | 120 kW (163 hp) 280Nm | 152 kW (207 hp) 310Nm | * | 44 hp | 420 |
| 1.6 Turbo | 129 kW (175 hp) 240Nm | 152 kW (207 hp) 310Nm | * | 32 hp | 420 |
| 1.6 Turbo | 135 kW (184 hp) 240Nm | 157 kW (214 hp) 325Nm | * | 30 hp | 420 |
| JCW | 155 kW (211 hp) 280Nm | 184 kW (250 hp) 345Nm | * | 38 hp | 599 |
| GP II | 160 KW (218 hp) 280Nm | 184 KW (250 hp) 350Nm | * | 32 hp | 599 |