Thanks for all your replys. A standard fit towbar with single electrics is about £300 fitted.
However the negotiations didn't happen as expected as the dealer couldn't lay his hands on all of the service history and as this was a high miler at 170000 with 90000 miles of outstanding history, I decided that there where too many risks in purchasing this one.
I've suddenly gone all technophobe ( spelling
) and decided the Audi is too complicated if it goes wrong.
I've test driven a 3.1 TDI Vauxhall Monterey this evening and am well impressed. This I believe is an Isuzu Tooper and will make an excellent replacment for the Kia. It even has a towbar