Discovered a large crack in the windshield over the weekend. I had just come back from filling up the car and the crack was not there when getting home. I moved the car out of the garage so my son could do some work and when I went to move it back in a couple of hours later, there it was. The car was sitting out in the sun during that time. Upon closer examination, I do see a very small rock chip in the crack which could have been the starting point of the long single crack. I do realize rock chips can cause cracks such as these, but what really surprised me was when I called to get an estimate on repair, the person said they had just repaired a Prius c windshield from a person that had their car for only 2 days before it was damaged. Same indications of a small rock chip as the start of a large single crack. It all might be a coincidence, but wanted to warn others that of the 4 Prius c's that have been sold on Kauai in the last month, 2 of them have suffered windshield damage within weeks of delivery. I have had rocks "star" windshields before, but this is the first I've ever experienced where the rock chip started a long single crack such as this. Be careful out there.