Thanks for that link, I'll have a read through and see how similar it is to mine.
I'll get a better picture uploaded when it's light again that will hopefully show it more clearly.
The original picture was not very clear so I've uploaded a few better quality ones. You can clearly see here the flakey paint and cracks now appearing in the paint work.
What do you chaps reckon? Warrenty paint issue or corrosive damage?
Also any ideas of the cost of having a roof (double sunfroof - so the majority is full glass) resprayed?