[firecall]

IIRC The British Highway Code* used to suggest this as a method to move a vehicle stuck on a level crossing! (Train crossing).

They did note that it’s only good for manual cars. Automatics were not standard in the UK in the 80s.

All from memory, so might be mangling the details :-)

*Or could have been the Australian version.

[maccard]

Automatics are not standard in the UK in 2025 either!

[FridayoLeary]

When the alternative is car confetti it's not such a dumb idea.

[ztetranz]

I remember that in the New Zealand code too.