What Company Offers Car Insurance for International Rallies?

Hey Guys ... quick question.

When vehicles are doing international rallies, how do they get car insurance. Im not talking about the rally itself. But when you are going to the starting point, how do you get coverage for normal road driving? Is there a company that offers car insurance for international destinations? Thanks!
As in underwiting yor rally car for comprehensive and/or collision? Or simply minimal required in a country you are visiting/competing in?