I'm far from an engineer but these cars have burst panels. Make them much larger. They are obviously pumping more fuel into these to make them quicker and faster but they are not compensating for a catastrophic failure. Take JFR for instance, they have burst panels on the topside running parallel of the supercharger. widen the panel double or 75% more with a tether or the other body styles, enlarge them 50-75% larger. tethered of course. I believe that would allow for the concussion of the explosion to exit quickly and allow for the body to stay intact. If you lenghen the tethers to allow the body to clear the chassis, where is it going to land? the side and jerk the car to the wall or the other lane? Everything is body wraps so it would be simple to have the wrap perforated or blended in with the sponsor that the fan wouldn't even know the difference.