According to The Grand Tour and former Top Gear producer Andy Wilman, the 61-year-old presenter has only gotten fitter since he started working on his own farm for his other show, Clarkson's Farm.
Speaking ahead of the upcoming Grand Tour special 'Carnage A Trois' set to release on Amazon Prime Video on December 17, the showrunner explained how the iconic trio has been dealing as they age.
Watch: Jeremy Clarkson says he nearly lost his leg in accident on his farm
"Jeremy is a bit fitter because he’s been doing the farm, you naturally are a bit fitter," Wilman told Metro.co.uk adding that Clarkson is fitter than he has been in years.
The producer went on to say that he doesn't see the show end or the trio slowing down anytime soon because of the effects of ageing.
He explained that when it came to Clarkson throwing himself out of a moving car during a skit for the upcoming episodes, there was not a question of talking him out of it: "There actually wasn’t any winging."
Watch: The trailer for The Grand Tour Presente: Carnage A Trois
'Carnage A Trois' is the second half of the show's UK-set lockdown specials after 'Lochdown' was released this summer.
According to the official synopsis, the trio will "dive into the bizarre world of French car culture".
"On an epic road trip starting in the Welsh hills, they dish up a hair-raising mountain climb, bomb defusals, propeller powered cars, helicopter stunts, and the most thrilling race of their lives before reaching the English Channel for a jaw dropping medieval climax.
"And a soupcon of French art house cinema."
Watch: Government should 'back off' UK farmers to help food stocks, Jeremy Clarkson says