I am very certain I am talking about electrical and hybrid vehicles. The first one that had me aghast was a Nissan Leaf. Today, too many. Obviously I cannot confuse them with ICE ("brooom").

The point about the "whining possibly-engine" comes from a chat with a friend, where I said that they had decided to really use the most annoying overlapped noises to make the cars audible: he replied, those are not the additional noises, but the "noises from the engine" (probably from the whole system). I don't know.

> silence is objective

The electrical and hybrid vehicles I witnessed are very far from silent (save for the bicycles - I can't assess them, too little experience). As expressed, to us those noises - running noises and operational noises - are annoying to a whole new level.