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".