Opel Signum (2003-2005) nuđen je sa 14 različitih konfiguracija motora kroz celu ponudu opreme.
| Motor | Snaga | Obrtni moment | Menjač | Pogon | Najveća brzina | 0-100 km/h | Potrošnja | Dostupno u |
|---|---|---|---|---|---|---|---|---|
| 3.2L Benzin | 211 hp | 300 Nm | Automatic | Front Wheel Drive | 235 km/h | 8.5 s | 10.7 l/100km | 4 verzije |
| 3.2L Benzin | 211 hp | 300 Nm | Manual | Front Wheel Drive | 237 km/h | 7.9 s | 10.1 l/100km | 4 verzije |
| 3.0L Dizel | 177 hp | 370 Nm | Automatic | Front Wheel Drive | 218 km/h | 9.9 s | 7.9 l/100km | 4 verzije |
| 3.0L Dizel | 177 hp | 370 Nm | Manual | Front Wheel Drive | 221 km/h | 9.4 s | 7.4 l/100km | 4 verzije |
| 2.0L Benzin | 175 hp | 265 Nm | Manual | Front Wheel Drive | 220 km/h | 9.4 s | 9.2 l/100km | 4 verzije |
| 2.2L Benzin | 155 hp | 220 Nm | Automatic | Front Wheel Drive | 206 km/h | 11.0 s | 9.1 l/100km | 4 verzije |
| 2.2L Benzin | 155 hp | 220 Nm | Manual | Front Wheel Drive | 211 km/h | 9.8 s | 8.1 l/100km | 4 verzije |
| 1.9L Dizel | 150 hp | 320 Nm | Automatic | Front Wheel Drive | 205 km/h | 10.7 s | 7.2 l/100km | 2 verzije |
| 1.9L Dizel | 150 hp | 320 Nm | Manual | Front Wheel Drive | 209 km/h | 10.5 s | 6.1 l/100km | 4 verzije |
| 2.2L Dizel | 125 hp | 280 Nm | Automatic | Front Wheel Drive | 195 km/h | 11.8 s | 7.6 l/100km | 4 verzije |
| 2.2L Dizel | 125 hp | 280 Nm | Manual | Front Wheel Drive | 201 km/h | 11.2 s | 6.3 l/100km | 4 verzije |
| 1.8L Benzin | 122 hp | 167 Nm | Automatic | Front Wheel Drive | — | — | — | 3 verzije |
| 1.8L Benzin | 122 hp | 167 Nm | Manual | Front Wheel Drive | 197 km/h | 12.2 s | 7.9 l/100km | 3 verzije |
| 1.9L Dizel | 120 hp | 280 Nm | Manual | Front Wheel Drive | 191 km/h | 12.2 s | 6.0 l/100km | 2 verzije |
Svaki red je zasebna mehanička konfiguracija — zapremina motora, snaga, menjač, pogon i vrsta goriva — deduplikovana kroz nivoe opreme koji dele isti motor. Razlike samo u opremi (enterijer, felne, opcije) ne stvaraju poseban red.