Insurance for wedding hire

[daviesbike]

i wander if any of you may be able to help me out i have had a few people ask me to do weddings in the past for them, going back a few months now as i am a taxi driver by trade any way i have all the relevent licencing ect but i would like to know how i can do this legally in the Audi ? as it is only insured for social and domestic its fully comp of course, but for paying passengers i would need to be covered properly.

as i will only be doing this every so often is there a way that i can get insured on the day just for that event and then again if some one else enquires for another event ?

i dont want to be paying a full years insurance for something i will be doing once in a blue moon, i know that the taxi's in the fleet at the moment can not be over so many years old, i think the Audi is too old for that but is it for weddings ? classic cars from the 40's up the 70's i have seen used as wedding cars so could i find the legal way of doing this ? as im not sure if mine would be classed as a classic car ?

any help with this would be great as google dose not seem to be throwing up the results i need