— Component that Failed: The Panoramic Sunroof (glass side that opens) — Safety Risk: Glass shattering above your head while driving, tons of glass falling below to the driver & passengers in the car | Shock of a loud gunshot while driving — causes wrecks — Vehicle Inspected: Currently at Hyundai, figuring out what to do — Warning signs: ABOLSUTLEY NONE — spontaneous explosion My husband, two friends, and I were traveling down the interstate at 55 mph, we heard a loud bang (like the sound of a gunshot)! Our panoramic sunroof sunshade was pulled back with the sunroof closed. Instantly, the sunroof exploded into a million tiny pieces of glass that partially rained down on our heads and shoulders and all over the rest of our car. It was quite a startling sound. There was a hole about 10 inches across in the sunroof and more pieces were continuing to fall out. To protect our heads, I closed the sunshade. Then, we could hear pieces hitting the shade and glass falling behind us on the road. Once we got home, the hole became much larger.