It will work fine of your intention is to secure the arm so that it won't dangle when you drive

For the same reason why this device does not go left by the metal slab pulling the magnet to the left

Jim Knopf und Lukas der Lokomotivführer (Jim Button and Lukas the Engine Driver) dit it first:

Magneto was right!

I think that only works on steam trains

Obviously, because they don't want us to know this. Duh.

Me sighing as people akshually comment explaining the obvious in a meme sub. 😅

You moron, that would make the car flip, you need to attach it to the back of your car horizontally

You need a magnetic personality to make this work. No personality, no movement. And if you have a personality that pushes things away, the car might explode.