Episode 4
| Episode Number | 4 |
|---|---|
| Season | 20 |
| Aired | 2013-07-21 |
| Overview | Jeremy Clarkson, Richard Hammond and James May bring relief to flood-stricken areas of Britain by building a car that can turn into a hovercraft. |
| Runtime | 60 minutes |
| Absolute Number | 0 |
| Finale Type |