Jeremy Clarkson and James May have said Britain remaining in the EU is one of only three things they agree on.
The former Top Gear presenters were speaking as they met Prime Minister David Cameron in the west London office of their TV production company.
Clarkson said to the PM: “It’s an extraordinary thing that James and I only agree on three things, which is sandwich spread is delicious, the old Subaru Legacy Outback is a good car and Britain staying in.”
During an informal talk with Mr Cameron over cappuccinos in Stronger In-branded mugs and croissants, Clarkson added: “I have not, with the greatest of respect, heard one politician say anything that’s caused me to change my mind.
“There’s huge numbers that don’t understand and get confused. Really, it’s my gut.”
Clarkson has previously declared being in favour of Remain, saying it would be “better to stay in and try to make the damn thing work properly”.
Clarkson said he felt there were “compelling” reasons for leaving.
But, he added: “They’re not compelling enough for me to say I want to drive a Morris Oxford, which is what would happen.”
May said: “If I’m honest, it’s a gut feeling for me as well.
“There are too many people who think we will be alright… but that’s just not true.”
The pair discussed the effects of Brexit on the UK car industry and Mr Cameron said manufacturers would face tariffs on exports to the continent in the event of vote to leave.
He said: “I’ve spent a lot of time in different car plates in the last few years and if you look at Toyota, Nissan, Jaguar, Ford they are all doing well in Britain.
“They are all expanding, they are all making more, they are all selling more and if we were out – like America was out and with a trade deal like them – they would actually face a tariff on every single car they send to Europe.”
Clarkson added that his fellow presenter Richard Hammond was filming in France for the trio’s new Amazon Prime show and was still undecided on how to vote.
“He is a don’t know – he does not actually know there’s a referendum on,” he joked.