The current Peugeot 408 covers up to 456 km on a full charge. Figures below are the longest-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 2022–2026 | Electric | 84 |
| 2024–2026 | Electric | 453 |
| 2026–present | Electric | 456 |
Range is the manufacturer-rated maximum for the longest-range variant in each generation, not an average across trims — smaller-battery versions go less far. Figures with an implausible range for their powertrain are excluded rather than shown with a guessed correction.