The current Seat Leon is 4,368 mm long, 1,799 mm wide and 1,454 mm tall, on a 2,684 mm wheelbase. It has grown 18 cm longer since the 2000 Leon.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 2000–2006 | 4,184 | 1,742 | 1,456 | 2,513 | 332 | 10.9 |
| 2005–2013 | 4,315 | 1,768 | 1,458 | 2,578 | 341 | 10.7 |
| 2013–2017 | 4,250 | 1,813 | 1,452 | 2,618 | 380 | 10.2 |
| 2017–2020 | 4,278 | 1,815 | 1,450 | 2,631 | 372 | 10.3 |
| 2020–2024 | 4,368 | 1,799 | 1,450 | 2,686 | 374 | 10.5 |
| 2024–presentCurrent | 4,368 | 1,799 | 1,454 | 2,684 | 340 | 10.5 |
Exterior figures are manufacturer specifications for the Leon, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.