I had a policy on my cossie in which the certificate clearly stated i could
drive any other vechile without it being insured as long as i had the
owners permission and that it was taxed and tested, none of my pals
believed me untill i showed them the certificate so they could see it with
there own eyes, this was around two years ago and not sure if them
sort of policys are still around maybe Tony @ Greenlight can put some
light on it