I had this with my tdv6. My suspects were birds. Is the roof ok ?
The guy at the garage had a quick look and also said it would need re-painting. I bought the car 5 1/2 years ago and the paintwork was unblemished. It really has been only in this last year that the problem has appeared, and become worse. Of course, I have no way of knowing the previous history. Thanks again for your replies.I think Joe has nailed the problem , theres clearly been a reaction which has been confined to the bonnet and inevitably caused by heat ,
I also feel that this deterioration must have been a gradual process so I am slightly surprised you haven't noticed . If the lacquer is shot ,
it won't polish out
Lets see a photo when its done.Well, seems Joe was right on the button. Car is now in a local bodyshop for a down to metal re-spray of the bonnet.