I came to my 3 months old range rover sport today and found the driver side quarter glass all cracked up, literally as it was hit from inside and was all cracked up. I had to tape it because I thought its going to burst open as I drive . Initially I suspected vandalism but we are talking about a secured hospital parking lot. There was no other scratch or dent anywhere else!! Did it shatter spontaneously? Is it a defect in manufacturing? I saw some posts with the same thing happening with sun roof.