Man it is pictures like that , that made me go with a cage. I was looking at some pictures one day and there was a xj that flipped over backwards. the whole top was smashed in. Let me say it again. The whole top was flat almost even with the hood. From that day on I started looking into exo cages and internal. Internal cages are great in what they do. They protect the people inside of it. Exo cages do the same. But one added thing my exo ties to the front and rear bumpers and the rocksliders. The frame was reinforced and the whole thing is now a lot stiffer. Don't have to worry about the unibody anymore. I have 1.75 dom tubing on almost all of the exo.
There will be many changes in the future. Including a rear 4 link next year.
I will keep pics posted up.