El Peugeot 406 (1999-2002) se ofreció con 17 configuraciones de motor distintas en toda su gama.
| Motor | Potencia | Par motor | Transmisión | Ruedas motrices | Velocidad máxima | 0-100 km/h | Consumo | Disponible en |
|---|---|---|---|---|---|---|---|---|
| 2.9L Gasolina | 210 hp | 285 Nm | Automatic | Front Wheel Drive | 232 km/h | 9.5 s | 10.0 l/100km | 1 acabado |
| 2.9L Gasolina | 210 hp | 285 Nm | Manual | Front Wheel Drive | 240 km/h | 8.0 s | 9.6 l/100km | 1 acabado |
| 2.9L Gasolina | 194 hp | 267 Nm | Automatic | Front Wheel Drive | 227 km/h | 9.7 s | 11.0 l/100km | 1 acabado |
| 2.9L Gasolina | 194 hp | 267 Nm | Manual | Front Wheel Drive | 230 km/h | 8.2 s | 10.9 l/100km | 1 acabado |
| 2.2L Gasolina | 160 hp | 217 Nm | Manual | Front Wheel Drive | 214 km/h | 9.4 s | 8.8 l/100km | 3 acabados |
| 2.0L Gasolina | 143 hp | 192 Nm | Manual | Front Wheel Drive | 210 km/h | 9.9 s | 7.5 l/100km | 2 acabados |
| 2.0L Gasolina | 138 hp | 190 Nm | Automatic | Front Wheel Drive | 201 km/h | 11.4 s | 8.6 l/100km | 2 acabados |
| 2.0L Gasolina | 138 hp | 190 Nm | Manual | Front Wheel Drive | 208 km/h | 10.0 s | 8.3 l/100km | 2 acabados |
| 2.2L Diésel | 136 hp | 314 Nm | Manual | Front Wheel Drive | 205 km/h | 10.2 s | 6.4 l/100km | 3 acabados |
| 1.7L Gasolina | 117 hp | 160 Nm | Manual | Front Wheel Drive | 197 km/h | 11.3 s | 7.7 l/100km | 3 acabados |
| 1.7L Gasolina | 117 hp | 160 Nm | Automatic | Front Wheel Drive | 193 km/h | 12.8 s | 8.4 l/100km | 2 acabados |
| 1.8L Gasolina | 112 hp | 155 Nm | Manual | Front Wheel Drive | 194 km/h | 12.4 s | 8.7 l/100km | 2 acabados |
| 1.8L Gasolina | 112 hp | 155 Nm | Automatic | Front Wheel Drive | 188 km/h | 14.7 s | 8.9 l/100km | 1 acabado |
| 2.0L Diésel | 110 hp | 250 Nm | Automatic | Front Wheel Drive | 188 km/h | 12.6 s | 6.5 l/100km | 2 acabados |
| 2.0L Diésel | 110 hp | 250 Nm | Manual | Front Wheel Drive | 191 km/h | 11.2 s | 5.6 l/100km | 5 acabados |
| 2.0L Diésel | 90 hp | 205 Nm | Manual | Front Wheel Drive | 180 km/h | 13.0 s | 5.7 l/100km | 3 acabados |
| 1.8L Gasolina | 90 hp | 147 Nm | Manual | Front Wheel Drive | 181 km/h | 14.6 s | 8.4 l/100km | 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.