The "roll bar" in the Wranglers is not designed to protect the occupants ? That's funny, I've known of several that did just that. They were installed in the old solid front axle CJ's that would roll easily if pushed too hard in turns. They worked back then and do today as well.
Don't tell me they aren't fast. Mine's got the latest V-6 and 3.73 gears.
And they do feel and act like a very reponsive sports car. They trouble is they don't handle like one if you break the tires loose. But the current ones have come a long way from the old CJ's when it comes to handling at speed. E