Thanks, i didn't go and see it in the end and as brought another Zed instead.
When I checked the HPI it all checked out with the details he had given me but something didn't feel right as he was desperate to sell and couldn't remember the registration year when i asked him on the phone. He had to call me back with the details.
I'll have a look to see if the advert is still on autotrader and report it to them.