Loved the Maliboo - one of my engineers had one that the passenger side door fell off of @ 60K - beyond warranty so he just wired it on & kept driving the car

. I don't doubt that you believe what you are posting, but tests can be designed to emphasize obvious flaws while also emphasizing the good points of the vehicle being touted.
Early in my career after college graduation I worked in a Molybdenum mine. A significant amount of Molybdenum went into car bumpers at that time. Made them malleable & needless to say provided a significant 1st line of defense when playing Bumper car

. Moly because of it's molecular structure also is used in lubricants.
While I am not an expert on shaping load failure paths, I do know it is possible though expensive to do so. Composites will provide a significant weight reduction but again are expensive. Cars today are built like pop cans, one only need to get into a slight fender bender to see the damage wrought & the after market expense thereof.
You guys can believe what you want to - I spent the last 25 years of my career designing & repairing airplanes - if it made any difference I could probably scare up a very capable Stress guy that would blow holes in your theory - He could give you the numbers, my forte was the practical side - I can still look at a piece of metal that has not been uniformly Heat treated & predict the failure point from my mining days -
Beyond that - unless something worthy comes up I think I will retire for the night

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