Does anyone have experience insuring a nanny on the family car? We have insurance with Aviva and we need to add our son's nanny to the policy, however Aviva won't add a named driver for business use. Everywhere else we've looked will only allow a named driver who is an employee to use the car for business use if it's the business of the policyholder, which isn't the case with the nanny. Is the only option a specialist provider like Morton Michel? They seem very expensive!