Model | Year | Engine power | Displacement | Top speed | 0-100 km/h (0-62 mph) |
|---|---|---|---|---|---|
| Opel Omega 2.5 | 1994 | 126 kW | 2498 ccm | - | - |
| Opel Omega 2.5 Break | 1999 | 126 kW | 2498 ccm | - | - |
| Opel Omega 2.5 D | 2002 | 111 kW | 2497 ccm | - | 11.3 s |
| Opel Omega 2.5 D | 1999 | 97 kW | 2497 ccm | - | - |
| Opel Omega 2.5 D | 1994 | 97 kW | 2498 ccm | - | - |
| Opel Omega 2.5 D Break | 2002 | 111 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 Automatic | 2008 | 132 kW | 2597 ccm | 229 km/h | 9.5 s |
| Opel Omega 2.6 Automatic | 2005 | 133 kW | 2597 ccm | 229 km/h | 9.5 s |
| Opel Omega 2.6 Break | 1990 | 111 kW | 2594 ccm | - | - |
| Opel Omega 2.6 CD | 1993 | 110 kW | 2590 ccm | 210 km/h | - |
| 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 | 1994 | 156 kW | 2962 ccm | - | - |
| Opel Omega 3.0 Break | 1999 | 156 kW | 2962 ccm | - | - |
| Opel Omega 3.0 Elite | 1994 | 155 kW | 2962 ccm | 225 km/h | - |
| Opel Omega 3.0 GSi | 1990 | 153 kW | 2967 ccm | 235 km/h | - |
| Opel Omega 3.2 | 2001 | 161 kW | 3175 ccm | - | - |
