James May sinks into a lake as he tries to create a sustainable car in The Grand Tour episode 4

AMAZON have just released the trailer for episode four of its original series The Grand Tour, starring former Top Gear presenters Jeremy Clarkson, Richard Hammond and James May.
The episode, called Enviro-mental, sees the dynamic trio back in Whitby, Yorkshire, after kicking off the series in the Californian desert and enjoying a stint in Cape Town, South Africa.
For this episode they attempt to create cars made of sustainable materials before they take part in a "green" motor sport event.
What could possibly go wrong? the trailer asks.
Looks like plenty, including James's vehicle sinking into a lake with him in it, as he quips: "May be leaking slightly."
Richard is hidden somewhere in a car, and Jeremy has his pals in hysterics over the wing mirrors on his vehicle — which appear to be a pair of animal ears.
Meanwhile an eight-foot-tall sculpture of Jeremy's head has been spotted on the back of a lorry in Washington, DC.
Amazon have teased that versions of James and Richard are also in the works.
And earlier this week Olympic cyclist Chris Hoy was snapped filming scenes for The Grand Tour in Scotland, where the icy weather reportedly got too much for him.
The athlete was seen rowing a boat alone on Loch Ness, surrounded by divers and rescue teams.
But after an hour, he was said to have told the team he couldn't continue as he was too cold.
Filming in the location had already gotten off to a bad start, with the gang descending on Fort Augustus to be greeted by a rude message in graffiti on a local fish and chip shop.
Locals had seemingly written the three hosts' names in large black letters, along with the words "Go away".
Chris wound up the latest victim of the programme's celebrity gag, which involves killing off its weekly guests before they can make it to the studio tent.
The concept came about after BBC bosses banned Jeremy from grilling celebs on The Grand Tour, claiming it would be ripping off Top Gear.
The new show also isn't allowed to let stars drive around a track and put their lap times on a leader board, as it would be too similar to the BBC's Star in a Reasonably Priced Car segment.
Jeremy, Richard and James left Top Gear in 2015 after Jeremy was accused of punching a member of the production staff in a row over a steak.
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Amazon reportedly spent £160 million on The Grand Tour, and viewing figures so far suggest the figure could be justified.
Critics of the series have sung its praises, with The Sun’s Dan Wootton calling The Grand Tour “one of the most exhilarating TV series ever”.
Enviro-mental will be available to stream Friday on Amazon Prime.