They were very rigid and strong. Unibody was next. Like an aircraft fuselage. When the modern cars, get rear ended, the body shrinks and jam up the doors, and can’t be opened. Near by a Toyota Rave 4 was real ended, family of 4, parents and two kids. The wife got out just in time and could not open the other doors and watched her family burn up in that car.
I’ve seen many others that went up in flames, and NOTHING in the news, or from Ralph Nader to bash these modern, gas miser, imported, environmentally friendly cars. They OFTEN end on on their sides or upside down. I saw one on its tail up against a tree, and another time one up on its nose against a tree.
Also often I read the cause was “Loss of control”. My opinion is these stupid looking low profile tires. Two inches of sidewall. Rim to road. Not engineeringly correct. No flexibility. Long ago a Corvette owner tried them and told me they are no good. He said, “On a fast exit ramp, you get no squealing or screeching to WARN you. They break loose or lose traction suddenly and you slide sideways, out of control.