When there were far fewer people around, far fewer laws and regulations, when the legal speed limit was 75 mph, when gas was cheap, when driving was a pleasure, if you owned a hot machine you could point the grill down an empty road and go!
Squirrel Knobs
We used to call these Squirrel Knobs, Suicide Knobs, or Necker Knobs. I have an essay about them in my new work-in-progress "Overtures to Motion." They were a cheap and easy way to add style to your car.