A couple of weeks ago a roof tile got blown off my garage roof and landed on the roof of my 7 month old i3. There are a couple of chips and scratches on it. I rang the BMW dealer I bought the car from and they put me in touch with a local panel repair company. They say that BMW tell them that if there is any damage that is deeper than 0.2mm deep the whole roof needs replacing. If it is less than 0.2mm they can repair it in a more traditional way. As a double check I got a parallel assessment done by the body repair outfit my insurance company wanted me to use. They took a look at the photos and said, because of the construction materials used in the roof, they would not be able to do the work! This at least prevents the insurance company pressuring me to use a non BMW recommended company, but it begs the question, how much of a nightmare is repairing damage caused to the exotic materials used in the i3's manufacture? Has anybody had experience of something similar? It seems crazy to me to cut off a roof in order to repair a few small nicks and scratches.