Was washing the car yesterday and noticed a build up of tar around the front of the rear arch, on closer inspection I thought I could see bubbling on the rear arch, cleaned off the tar and yes it appears the paint is bubbling at the small lip on the front of the rear arch.
[IMG]http://i692.photobucket.com/albums/vv281/rodgy1970/009-10.jpg[/IMG]
[IMG]http://i692.photobucket.com/albums/vv281/rodgy1970/010-11.jpg[/IMG]
If left unchecked it will no doubt work it's way round where it will be visible.
I swung by a dealer and had a quick look at some other cars and out of the five or so I checked (same model and similar age) a couple were the same.
I have seen the problems with the front arch and tail gate but it appears this problem might have been overlooked.
Somewhat shocked and disappointed this is the case on a 5 year old car.