Jeremy Clarkson says he was ‘mostly smashed’ during Grand Tour filming

They filled 'a third of a cargo plane' with beer

The final ever episode of the Amazon Prime series marks the end of the TV trio's work together, some 22 years after they first started hosting Top Gear.

And it sounds like they celebrated the end of an era in style, as Clarkson's revealed what they got up to when the camera's weren't rolling during filming.

During a Q&A event following a premiere screening of The Grand Tour: One For The Road, the 64-year-old revealed he and his co-stars were "mostly smashed" during filming in Zimbabwe, Metro reports.

When asked how much alcohol the three presenters drank per episode, Clarkson said: "I’ll let you into a little secret on that one.

"We had a big cargo plane… to move all of the kit that we needed out to film a show like that, you’ve got 70 people on the crew, a lot of people, you’ve got to get the cars out there, the spare parts out there, the camera equipment, the sound equipment, the minicams, the drones, it was a hell of a lot, and we didn’t fill the plane.

"So there was third of it left – we thought, 'Well what should we put on that?' Beer was the answer.

"So we had a third of an Antonov of beer to get through on that one."

He continued: "But we do drink a lot, we are mostly smashed… hopefully, nobody will notice that at the end of that lake crossing most of that drink had gone.

"Did you then notice we set off driving the next day?

"I’m duty-bound to tell you there was a three-day gap between arriving and setting off – but there wasn’t."

Fans were left in tears as they said goodbye to Clarkson, Hammond and May during their final episode together.

The two-hour special sees the trio travel to Zimbabwe for an epic road trip across the country in a Lancia Montecarlo, a Ford Capri 3-litre, and a Triumph Stag.