I have always ranked the apparent safety (or lack of it) while riding in my Cobra, at about 1 notch or so above that of riding on a motorcycle (have owned 4 motorcycles in the past).
There isn't much in the way of energy absorption available in my Cobra. In fact, when sitting in the Cobra and looking around, there isn't much in the form of protection in any form.
I feel much safer when riding in my F350 4WD dually. It sits higher, has ABS, air bags and weighs 8,300 pounds.
The single vs. dual roll bar discussion for STREET driving seems somewhat....... misplaced.
I may have to search for some form of tranquilizer OR avoid this thread if I read about one more fella who loves his wife more because of having 2 roll bars.
David