When I bought my 2011 roadster used a couple of years ago it was fresh out of the paint shop to fix some "blisters" in the paint on warranty. Now, just after the warranty expired, the same type of blisters has apeared on the other side of the car, and it keeps getting worse. According to Tesla it need to be sanded down and repainted, sounds cheap... It's not the paint, but moist trapped in the fiber glass (mostly known in boats). I seem to remember another post of this earler, so it might not be the only car affected?