La Seat Leon Facelift 2017 (2017-2020) a été proposée avec 21 configurations moteur distinctes sur l’ensemble de ses finitions.
| Moteur | Puissance | Couple | Transmission | Roues motrices | Vitesse maximale | 0-100 km/h | Consommation | Disponible sur |
|---|---|---|---|---|---|---|---|---|
| 2.0L Essence | 300 hp | 380 Nm | Automatic | Front Wheel Drive | 250 km/h | 5.7 s | 6.7 l/100km | 2 finitions |
| 2.0L Essence | 300 hp | 380 Nm | Manual | Front Wheel Drive | 250 km/h | 5.8 s | 6.9 l/100km | 1 finition |
| 2.0L Essence | 290 hp | 380 Nm | Automatic | Front Wheel Drive | 250 km/h | 6.0 s | 6.5 l/100km | 2 finitions |
| 2.0L Essence | 190 hp | 320 Nm | Automatic | Front Wheel Drive | 224 km/h | 7.2 s | 5.8 l/100km | 2 finitions |
| 2.0L Diesel | 184 hp | 380 Nm | Automatic | Front Wheel Drive | 228 km/h | 7.5 s | 4.5 l/100km | 6 finitions |
| 2.0L Diesel | 184 hp | 380 Nm | Manual | Front Wheel Drive | 228 km/h | 7.5 s | 4.5 l/100km | 4 finitions |
| 1.8L Essence | 180 hp | 250 Nm | Automatic | Front Wheel Drive | 224 km/h | 7.2 s | 5.8 l/100km | 4 finitions |
| 1.8L Essence | 180 hp | 250 Nm | Manual | Front Wheel Drive | 226 km/h | 7.5 s | 6.0 l/100km | 4 finitions |
| 2.0L Diesel | 150 hp | 340 Nm | Automatic | Front Wheel Drive | 211 km/h | 8.4 s | 4.4 l/100km | 7 finitions |
| 2.0L Diesel | 150 hp | 340 Nm | Manual | Front Wheel Drive | 215 km/h | 8.5 s | 4.4 l/100km | 6 finitions |
| 1.5L Essence | 150 hp | 250 Nm | Automatic | Front Wheel Drive | 213 km/h | 8.3 s | 5.1 l/100km | 9 finitions |
| 1.5L Essence | 150 hp | 250 Nm | Manual | Front Wheel Drive | 215 km/h | 8.2 s | 5.1 l/100km | 6 finitions |
| 1.4L Essence | 150 hp | 250 Nm | Automatic | Front Wheel Drive | 215 km/h | 8.0 s | 4.9 l/100km | 6 finitions |
| 1.4L Essence | 150 hp | 250 Nm | Manual | Front Wheel Drive | 215 km/h | 8.0 s | 4.9 l/100km | 6 finitions |
| 1.5L Essence | 130 hp | 200 Nm | Manual | Front Wheel Drive | 203 km/h | 9.4 s | 5.0 l/100km | 10 finitions |
| 1.5L Essence | 130 hp | 200 Nm | Automatic | Front Wheel Drive | 206 km/h | 9.9 s | 3.5 l/100km | 5 finitions |
| 1.6L Diesel | 115 hp | 250 Nm | Manual | Front Wheel Drive | 197 km/h | 9.8 s | 4.2 l/100km | 9 finitions |
| 1.6L Diesel | 115 hp | 250 Nm | Automatic | Front Wheel Drive | 197 km/h | 10.2 s | 4.1 l/100km | 6 finitions |
| 1.0L Essence | 115 hp | 200 Nm | Manual | Front Wheel Drive | 198 km/h | 9.8 s | 4.9 l/100km | 7 finitions |
| 1.0L Essence | 115 hp | 200 Nm | Automatic | Front Wheel Drive | 200 km/h | 10.1 s | 4.8 l/100km | 2 finitions |
| 1.4L Essence | 110 hp | 200 Nm | Manual | Front Wheel Drive | 194 km/h | 10.9 s | 5.4 l/100km | 2 finitions |
Chaque ligne est une configuration mécanique distincte — cylindrée, puissance, transmission, roues motrices et type de carburant — dédupliquée entre les finitions qui partagent le même moteur. Les différences de finition seules (intérieur, jantes, options) ne créent pas de ligne séparée.