The Opel Signum (2003-2005) was offered with 14 distinct engine configurations across its trim range.
| Engine | Power | Torque | Transmission | Drive | Top speed | 0-100 km/h | Consumption | Available on |
|---|---|---|---|---|---|---|---|---|
| 3.2L Petrol | 211 hp | 300 Nm | Automatic | Front Wheel Drive | 235 km/h | 8.5 s | 10.7 l/100km | 4 trims |
| 3.2L Petrol | 211 hp | 300 Nm | Manual | Front Wheel Drive | 237 km/h | 7.9 s | 10.1 l/100km | 4 trims |
| 3.0L Diesel | 177 hp | 370 Nm | Automatic | Front Wheel Drive | 218 km/h | 9.9 s | 7.9 l/100km | 4 trims |
| 3.0L Diesel | 177 hp | 370 Nm | Manual | Front Wheel Drive | 221 km/h | 9.4 s | 7.4 l/100km | 4 trims |
| 2.0L Petrol | 175 hp | 265 Nm | Manual | Front Wheel Drive | 220 km/h | 9.4 s | 9.2 l/100km | 4 trims |
| 2.2L Petrol | 155 hp | 220 Nm | Automatic | Front Wheel Drive | 206 km/h | 11.0 s | 9.1 l/100km | 4 trims |
| 2.2L Petrol | 155 hp | 220 Nm | Manual | Front Wheel Drive | 211 km/h | 9.8 s | 8.1 l/100km | 4 trims |
| 1.9L Diesel | 150 hp | 320 Nm | Automatic | Front Wheel Drive | 205 km/h | 10.7 s | 7.2 l/100km | 2 trims |
| 1.9L Diesel | 150 hp | 320 Nm | Manual | Front Wheel Drive | 209 km/h | 10.5 s | 6.1 l/100km | 4 trims |
| 2.2L Diesel | 125 hp | 280 Nm | Automatic | Front Wheel Drive | 195 km/h | 11.8 s | 7.6 l/100km | 4 trims |
| 2.2L Diesel | 125 hp | 280 Nm | Manual | Front Wheel Drive | 201 km/h | 11.2 s | 6.3 l/100km | 4 trims |
| 1.8L Petrol | 122 hp | 167 Nm | Automatic | Front Wheel Drive | — | — | — | 3 trims |
| 1.8L Petrol | 122 hp | 167 Nm | Manual | Front Wheel Drive | 197 km/h | 12.2 s | 7.9 l/100km | 3 trims |
| 1.9L Diesel | 120 hp | 280 Nm | Manual | Front Wheel Drive | 191 km/h | 12.2 s | 6.0 l/100km | 2 trims |
Each row is a distinct mechanical configuration — engine size, power output, transmission, drivetrain and fuel type — deduplicated across equipment trims that share the same engine. Trim-only differences (interior, wheels, options) do not create a separate row.