El Peugeot 505 (1985-1990) se ofreció con 18 configuraciones de motor distintas en toda su gama.
| Motor | Potencia | Par motor | Transmisión | Ruedas motrices | Velocidad máxima | 0-100 km/h | Consumo | Disponible en |
|---|---|---|---|---|---|---|---|---|
| 2.2L Gasolina | 180 hp | 265 Nm | Manual | Rear Wheel Drive | 210 km/h | 8.4 s | 10.2 l/100km | 1 acabado |
| 2.8L Gasolina | 170 hp | 235 Nm | Automatic | Rear Wheel Drive | — | — | — | 1 acabado |
| 2.8L Gasolina | 170 hp | 235 Nm | Manual | Rear Wheel Drive | 205 km/h | 9.2 s | 10.1 l/100km | 1 acabado |
| 2.8L Gasolina | 146 hp | 235 Nm | Automatic | Rear Wheel Drive | — | — | — | 1 acabado |
| 2.8L Gasolina | 146 hp | 235 Nm | Manual | Rear Wheel Drive | 197 km/h | 9.8 s | 11.1 l/100km | 1 acabado |
| 2.2L Gasolina | 131 hp | 180 Nm | Automatic | Rear Wheel Drive | — | — | — | 1 acabado |
| 2.2L Gasolina | 131 hp | 180 Nm | Manual | Rear Wheel Drive | 185 km/h | 10.0 s | 8.7 l/100km | 1 acabado |
| 2.2L Gasolina | 120 hp | 174 Nm | Automatic | Rear Wheel Drive | — | — | — | 2 acabados |
| 2.2L Gasolina | 120 hp | 174 Nm | Manual | Rear Wheel Drive | 178 km/h | 11.9 s | 10.1 l/100km | 3 acabados |
| 2.5L Diésel | 110 hp | 235 Nm | Automatic | Rear Wheel Drive | — | — | — | 1 acabado |
| 2.5L Diésel | 110 hp | 235 Nm | Manual | Rear Wheel Drive | 178 km/h | 13.0 s | 7.3 l/100km | 1 acabado |
| 2.0L Gasolina | 107 hp | 161 Nm | Manual | Rear Wheel Drive | 175 km/h | 12.2 s | 8.9 l/100km | 4 acabados |
| 2.0L Gasolina | 107 hp | 161 Nm | Automatic | Rear Wheel Drive | — | — | — | 1 acabado |
| 2.5L Diésel | 95 hp | 204 Nm | Manual | Rear Wheel Drive | 170 km/h | 14.0 s | 7.6 l/100km | 1 acabado |
| 1.8L Gasolina | 90 hp | 144 Nm | Manual | Rear Wheel Drive | 165 km/h | 14.5 s | 8.6 l/100km | 2 acabados |
| 2.5L Diésel | 76 hp | 147 Nm | Automatic | Rear Wheel Drive | — | — | — | 1 acabado |
| 2.5L Diésel | 76 hp | 147 Nm | Manual | Rear Wheel Drive | 152 km/h | 18.0 s | 7.6 l/100km | 3 acabados |
| 2.5L Diésel | — | — | Manual | Rear Wheel Drive | — | — | — | 1 acabado |
Cada fila es una configuración mecánica distinta — cilindrada, potencia, transmisión, tracción y tipo de combustible — deduplicada entre acabados que comparten el mismo motor. Las diferencias solo de acabado (interior, llantas, opciones) no crean una fila aparte.