When my roof was down, I opened the boot and noticed a 'blob' in the paint on the top part of the roof. Upon closer inspection it looked like a bit of glue. I asked my dad (a professional paint sprayer of over 20 years) to take a look, and he said it looked like the paint or lacquer had developed a fault causing the lacquer to 'craze'. Its about the size of a pea and apparently, it will grow until my roof looks a mess.
Im obviously going to have to get this fixed under warranty, but I dont like the idea of my 2 month old car having to be resprayed