I have a 2013 Griso with the black and silver paint and sticker job. Maybe people with older Griso's may have had this problem. What can be best described as pimples are showing up in the silver paint. They can barely be felt on the paint surface if at all. It would be as if circular flush rivets were used to assemble a metal tank and the edges of the rivet started showing through the paint. They are all circular, are showing up in random places and are increasing in number. I would try to post a photo, but they are very difficult to see in pictures because they only show up on the silver. And if this was not bad enough one of the black stickers is starting to bubble up and will not stay attached to the tank. My dealer has sent photo's and a description of the problem to the Piaggio group to see if they will replace the tank since the bike is still under warranty. I have looked at 2014 models and have not seen the problem, but it did take about a year for the defect to start showing up on my tank. And I thought after going through 6 tanks on my Ducati that I would escape fuel tank problems with this bike. So has anybody else experienced this on their Griso? Please, no jokes about my tank starting to look like the face of a teenager!