It’s always struck me as odd that crumple zones help absorb impacts which makes cars safer. Yet race cars have roll cages which make them safer.
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I’ll try to keep it simple. For the everyday person, convenience is a key factor. So getting into a car and clicking one buckle for a three point harness is simple and works to a certain degree. The crumble zones help this simple three point harness keep you safe from a hard impact while the car crumbles. When it comes to a race car with a cage, they will have a harness that is either 4-6 points that brace the driver against the seat. This allows a cage to take the full force of impact while the driver remains secured safely in their harness.
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