| Model | Year | Engine power | Displacement | Top speed | 0-100 km/h (0-62 mph) |
|---|---|---|---|---|---|
| Opel Omega | 1999 | 101 kW | 1998 ccm | - | - |
| Opel Omega 2.0 D | 1999 | 75 kW | 1992 ccm | - | - |
| Opel Omega 2.0 D Break | 1999 | 75 kW | 1994 ccm | - | - |
| Opel Omega 2.2 | 1999 | 106 kW | 2196 ccm | 210 km/h | 10.5 s |
| Opel Omega 2.2 Break | 1999 | 106 kW | 2198 ccm | - | - |
| Opel Omega 2.2 DTI | 1999 | 92 kW | 2171 ccm | - | 12.5 s |
| Opel Omega 2.5 | 1999 | 126 kW | 2496 ccm | - | - |
| Opel Omega 2.5 Break | 1999 | 126 kW | 2498 ccm | - | - |
| Opel Omega 2.5 D | 1999 | 97 kW | 2497 ccm | - | - |
| Opel Omega 2.5 D Break | 1999 | 94 kW | 2597 ccm | - | - |
| Opel Omega 2.5 TD | 1999 | 98 kW | 2497 ccm | 200 km/h | 12 s |
| Opel Omega 2.5 TD Automatic | 1999 | 97 kW | 2497 ccm | 195 km/h | 12.5 s |
| Opel Omega 2.6 V6 | 1999 | 135 kW | 2597 ccm | 229 km/h | 9.5 s |
| Opel Omega 3.0 | 1999 | 156 kW | 2962 ccm | - | - |
| Opel Omega 3.0 Break | 1999 | 156 kW | 2962 ccm | - | - |
| Opel Omega 5.7 | 1999 | 232 kW | 5663 ccm | - | - |
| Opel Omega 5.7 Break | 1999 | 232 kW | 5665 ccm | - | - |
| Opel Omega Break | 1999 | 101 kW | 1998 ccm | - | - |
| Opel Omega Caravan 2.2 | 1999 | 106 kW | 2196 ccm | 202 km/h | 11 s |
| Opel Omega Caravan 2.2 Automatic | 1999 | 106 kW | 2196 ccm | 198 km/h | 12.5 s |
