Fiat have told me its seized, have offered to try to unseize it at a cost of £300, but accept no responsibility if any parts are broken during the process, have been quoted a cost of £2000 plus for new replacement, which I guess if they do fail to unsieze it successfully is what will have to be paid on top of the £300 to get the roof in working order, webasto cannot legally supply any parts or advice, something to do with a copyright law, the car is 5 years old, surely these roofs have a life expectancy of longer than that, the roof has never been misused and the car has been serviced at regular intervals.