Rozmiary opon Opel Signum Hatchback I
| Nazwa | Lata produkcji | Moc KM | Moc KW | Typ silnika |
| Opel Signum Hatchback I 2.8 V6 Turbo | 2003 - 2008 | 230 | 169 | Benzyna |
| Opel Signum Hatchback I 3.2 V6 | 2003 - 2005 | 211 | 155 | Benzyna |
| Opel Signum Hatchback I 3.0 V6 CDTI | 2003 - 2008 | 184 | 135 | Diesel |
| Opel Signum Hatchback I 2.0 Turbo | 2003 - 2008 | 176 | 129 | Benzyna |
| Opel Signum Hatchback I 2.0 DTI | 2003 - 2005 | 150 | 110 | Diesel |
| Opel Signum Hatchback I 1.8 | 2003 - 2008 | 140 | 103 | Benzyna |
| Opel Signum Hatchback I 2.2 Direct | 2003 - 2008 | 125 | 92 | Diesel |
| Opel Signum Hatchback I 2.2 DTI | 2003 - 2005 | 125 | 92 | Diesel |
| Opel Signum Hatchback I 1.9 CDTI | 2004 - 2008 | 101 | 74 | Diesel |