My co-worker has a Chevy Bolt and she let me take her out for a spin. Pretty cool car and the pedestrian speaker sounds more like a choir in a church than a UFO!!
Tesla Model X lets you change the sound file, or have none. Your sound file can be as cool or stupid as you want. We had some sound technicians at Disney download the cartoon 60' Jetson's flying car take off & landing sound which was pretty funny. It'd probably get old though