Electric cars have to make noise on purpose because otherwise it would be a silent car.
And most of these noises are are weird futuristic WEEEE-00000 UFO sounds.
Therefore I posit that we should be able to change the noises our electric cars make
EDIT: These suggestions are Top-Notch! Keep em coming!
You can load sounds of different model trains into the decoders that go in them to make them drive and light up and make sound. The sounds follow what a real locomotive does, too, like the chuffs, turbocharger, or what have you.
Imagine loading a steam locomotive sound into a car