'The Grand Tour' looks set to continue up to season five and beyond.

Jeremy Clarkson

Jeremy Clarkson

The show's trio of presenters - Jeremy Clarkson, James May and Richard Hammond - have hinted the Amazon programme could potentially keep motoring on until at least a fifth series, after admitting they have signed up to carry on "for a few more years yet".

Speaking at a screening for the upcoming new series of 'The Grand Tour' at The Brewery in East London yesterday (16.01.19), Jeremy said: "We were signed up by Amazon to do three seasons and everyone was like, 'They're going to do four,' but we were only asked to do three.

"We're delighted to say Amazon have asked us to do more.

"Whenever anyone would say, 'Oh you're not telling us because it's not happening.' No, we can't tell you because we hadn't gotten round to doing three.

"When we finished three we talked to Amazon and they said, 'Oh no we'd be delighted,' and they seemed to love us so consequently you've got us for a few more years yet."

Asked about the changes in format for the fourth season, Jeremy added: "To be honest, we're still doing three. I'd love to be able to tell you the entire season is finished, but that's not true.

"There are still two shows which aren't even edited so we're still working hard on three.

"Then, when that's over, we'll turn our attention to what four, five and how many more there are going forwards will be like."

For series three, the trio have travelled around the globe through Colombia, Mongolia, China and Detroit.

The trio will ditch their classic tent - part of furniture on 'The Grand Tour' - in the fourth season, which will consist of a series of specials that are expected to be primarily road trips.

Series three of 'The Grand Tour' airs from Friday (18.01.19) on Amazon Prime.