re: Check out Jayne Mansfield in her prime.

quote:

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I never knew that is where the term "mansfield bar" on a tractor trailer or truck comes from

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Yup. After her accident the NTSB (or whatever it was called back then) passed a mandate that all commercial trucks needed to have a bumper or bar at a certain height from ground level.

I don't think she was decapitated but from pictures I've seen, you can definitely conclude she was "scalped".

Here's a pic of the car. You can see where the roof was sheared off from just above the dashboard...

Google is your friend if you want to see more.