
WelshGas
Retired after 42 yrs and enjoying Life.
Super Poster
Lifetime VIP Member
UK Government introduced that requirement from 1st July 2019.In Spain EVs, including public transport (most of the local busses are electric) are required to have sound projection at low speeds (higher speed tire noise makes this redundant.) It usually sounds like something out of science fiction, entertaining and effective. I think it’s an EU rule, so you may not have it in the UK?

New noise systems to stop ‘silent’ electric cars and improve safety
From 1 July 2019 all manufacturers must install an acoustic sound system in new types of quiet electric and hybrid electric vehicles to improve road safety.