I'm pretty OK with electric cars making fake engine noises. The Prius owner in my neighborhood would be semi regularly creaming people if they didn't have any a

I'm pretty OK with electric cars making fake engine noises. The Prius owner in my neighborhood would be semi regularly creaming people if they didn't have any auditory indication that he was about to come cruising out of the alley without slowing down to check for pedestrians. It doesn't have to be engine noises, it could be playing some sort of crazy "woop woop woop" sound for all I care, but I'm guessing the owner would prefer it be something a bit less embarrassing.