Others have addressed your other questions, but I want to add that the “coil whine” that irritates you is probably the car’s slow-moving warning system. EVs are effectively silent at slow speeds because there is no engine noise or road noise, so they are required to make an annoying sound when maneuvering to get your attention. While it is an important safety feature, I agree some are very obnoxious.
I’m not sure if we’re talking about the same sound as it’s so high pitched that most people older than me are unable to even hear it while people my age or younger can clearly identify it. If that’s supposed to be a warning system, it doesn’t seem very good?
Others have addressed your other questions, but I want to add that the “coil whine” that irritates you is probably the car’s slow-moving warning system. EVs are effectively silent at slow speeds because there is no engine noise or road noise, so they are required to make an annoying sound when maneuvering to get your attention. While it is an important safety feature, I agree some are very obnoxious.
I’m not sure if we’re talking about the same sound as it’s so high pitched that most people older than me are unable to even hear it while people my age or younger can clearly identify it. If that’s supposed to be a warning system, it doesn’t seem very good?