Maybe all the events of this year will change the results to a survey like this one some time in the near future, but the findings of present day can rock us back on our heels.
I will admit, at first I was very curious about this "driving aid." But the more I looked this odd gadget, the more I read..well, I just cannot figure out how it worked! Apparently it was sold in the 1950s to "take the work and worry out of parking a car...