El Seat Leon ST Facelift 2017 (2017-2020) se ofreció con 24 configuraciones de motor distintas en toda su gama.
| Motor | Potencia | Par motor | Transmisión | Ruedas motrices | Velocidad máxima | 0-100 km/h | Consumo | Disponible en |
|---|---|---|---|---|---|---|---|---|
| 2.0L Gasolina | 300 hp | 400 Nm | Automatic | All Wheel Drive | 250 km/h | 4.9 s | 7.1 l/100km | 3 acabados |
| 2.0L Gasolina | 300 hp | 380 Nm | Automatic | Front Wheel Drive | 250 km/h | 5.9 s | 6.8 l/100km | 1 acabado |
| 2.0L Gasolina | 300 hp | 380 Nm | Manual | Front Wheel Drive | 250 km/h | 6.0 s | 7.0 l/100km | 1 acabado |
| 2.0L Gasolina | 190 hp | 320 Nm | Automatic | Front Wheel Drive | 231 km/h | 7.3 s | 6.2 l/100km | 2 acabados |
| 2.0L Diésel | 184 hp | 380 Nm | Automatic | All Wheel Drive | 224 km/h | 7.1 s | 4.8 l/100km | 1 acabado |
| 2.0L Diésel | 184 hp | 380 Nm | Automatic | Front Wheel Drive | 228 km/h | 7.8 s | 4.6 l/100km | 6 acabados |
| 2.0L Diésel | 184 hp | 380 Nm | Manual | Front Wheel Drive | 228 km/h | 7.8 s | 4.6 l/100km | 4 acabados |
| 1.8L Gasolina | 180 hp | 250 Nm | Automatic | All Wheel Drive | 221 km/h | 7.7 s | 6.5 l/100km | 1 acabado |
| 1.8L Gasolina | 180 hp | 250 Nm | Automatic | Front Wheel Drive | 224 km/h | 7.7 s | 5.8 l/100km | 4 acabados |
| 1.8L Gasolina | 180 hp | 250 Nm | Manual | Front Wheel Drive | 226 km/h | 7.8 s | 6.0 l/100km | 4 acabados |
| 2.0L Diésel | 150 hp | 340 Nm | Automatic | Front Wheel Drive | 212 km/h | 8.7 s | 4.5 l/100km | 7 acabados |
| 2.0L Diésel | 150 hp | 340 Nm | Manual | Front Wheel Drive | 215 km/h | 8.8 s | 4.3 l/100km | 6 acabados |
| 1.5L Gasolina | 150 hp | 250 Nm | Automatic | Front Wheel Drive | 215 km/h | 8.3 s | 5.2 l/100km | 9 acabados |
| 1.5L Gasolina | 150 hp | 250 Nm | Manual | Front Wheel Drive | 215 km/h | 8.2 s | 5.1 l/100km | 6 acabados |
| 1.4L Gasolina | 150 hp | 250 Nm | Automatic | Front Wheel Drive | 215 km/h | 8.0 s | 4.9 l/100km | 6 acabados |
| 1.4L Gasolina | 150 hp | 250 Nm | Manual | Front Wheel Drive | 215 km/h | 8.0 s | 4.9 l/100km | 6 acabados |
| 1.5L Gasolina | 130 hp | 200 Nm | Manual | Front Wheel Drive | 207 km/h | 9.5 s | 5.1 l/100km | 10 acabados |
| 1.5L Gasolina | 130 hp | 200 Nm | Automatic | Front Wheel Drive | 206 km/h | 10.0 s | 3.5 l/100km | 5 acabados |
| 1.4L Gasolina | 125 hp | 200 Nm | Manual | Front Wheel Drive | 200 km/h | 9.7 s | 5.3 l/100km | 1 acabado |
| 1.6L Diésel | 115 hp | 250 Nm | Manual | Front Wheel Drive | 197 km/h | 9.9 s | 4.1 l/100km | 10 acabados |
| 1.6L Diésel | 115 hp | 250 Nm | Automatic | Front Wheel Drive | 196 km/h | 10.6 s | 4.1 l/100km | 6 acabados |
| 1.0L Gasolina | 115 hp | 200 Nm | Manual | Front Wheel Drive | 196 km/h | 11.2 s | 4.9 l/100km | 7 acabados |
| 1.0L Gasolina | 115 hp | 200 Nm | Automatic | Front Wheel Drive | 195 km/h | 10.3 s | 4.8 l/100km | 2 acabados |
| 1.4L Gasolina | 110 hp | 200 Nm | Manual | Front Wheel Drive | 194 km/h | 11.0 s | 5.4 l/100km | 2 acabados |
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.