Shane was the "victim" of that once in a couple hundred wrecks that ends up with the car in that position, I don't know how you could plan for that, or for that matter, build a chassis that the driver could still access, and still function and drive it. I think all builders try to imagine all the scenerios, and work toward that goal, I know my chassis have been in some pretty serious looking accidents, one, somehow qualifying, my driver managed to flip it endo, and got the hood, and landed square on the top of the cage, bagged him danged good, but didn't hurt the chassis, not so good to the hood, and I've seen others do the similar endo, just rolled in, biked, caught the front bumper and slammed it right on the cage, it just sometimes happens, no matter how much you test, and how much strength you can build in, that test was a one in 5 million chance of happening, and I think we all know , or have an idea to make it stronger in that case, but could the driver get in and out? Lots of questions, not many answers! Bob