My '2015 i-MiEV has such a horrible sound generator. I quickly disconnected it. Anyway, the car makes noise event at low speed. Either the vacuum pump for the brakes or the heating water pump (cold weather) or the whistling of the motor or inverter, all that has allready the same or higher noise level than the odd noise generator.
Next step: put also a noise generator on bicycles? They are not (always) electric, but rather noiseless, since over a century. really dangerous!!
the trombone is a really cool way of saying "loud pipes save lives"
