The Panoramic Sunroof spontaneous combusted traveling 75 mph on the interstate. No debris, other vehicles, or overpasses in sight. The explosion and raining glass poses a safety concern. The vehicle is currently in the shop being inspected by the manufacturer, repair shop, insurance adjusters trying to decide who is going to cover the random exploding panoramic sunroof. If government environmental can require auto start stops be put on all consumer vehicles, it seems that the regulatory safety could do something about the overhead exploding glass that is both dangerous and costly.