25 Top Gear Moments From Series 20 Episode 4

1. While testing the new SLS AMG Black Series, Jeremy has a revelation; he "never wanted more power" from the standard AMG version...

2. According to him, this is what 622hp looks like.

3. What's it up against? "The first car to ever come with its own high-vis jacket".

4. So Jeremy, what does the world's first electric car sound like? "It's as quiet as a library for church mice"

5. The V8 goes up against its electric counterpart. Bet you didn't expect this result...

Meanwhile...

6. Jeremy tests a hovercraft, the "savior" to all the UK's flooded towns!

7. The location of the team's hovercraft challenge base, naturally...

8. "It's practically a hovercraft already," enthuses Richard about the donor 'car'.

9. How can you test the speed of a hovercraft engine? By pouring flour into it, of course.

10. "Top Penis".

11. Introducing you to the future: The 'Hover Van'.

12. This looks familiar...

Back to the studio

13. "James' skirt was too small," the obvious answer to what went wrong.

Wolverine steps up

14. "Yeah Stig, you'd be proud of me," says Jackman in the Vauxhall Astra.

Hover van chaos continues...

15. Test run #2 doesn't go to plan... "we've crashed!"

16. James and Richard are attacked by some tree branches as Jeremy's driving gets out of control.

17. The Hover Van, crane not included.

18. The magical golden envelope makes an appearance, after which the boys knock a man out of his boat.

19. ...before becoming tangled in several parked boats.

20. After brushing off the previous two calamities, they stop off for lunch. But don't stick around.

21. After breaking down again, Jeremy, Richard and James use up their oxygen.

22. It was all going (relatively) to plan until they came across a lock...

23. Their transition from lock to river is anything but smooth.

24. To top it all off, James leads them down the wrong route and through a weir.

25. Surprisingly, they survive. Jeremy exclaims: "Unbelievable. I knew it would be alright. I'm going to go back up!"...the Hover Van breaks down again. "You pillock"

Watch the fourth episode of Top Gear's 20th series on BBC iPlayer