So, I don't want to disclose why I want to know about this because its to do with a friends invention and it would be unfair to publish too much information without his consent. That's my disclosure so to speak. I'm interested in how static electricity is managed in vehicles. I remember cars used to do it a lot, and it seems to happen less now. I believe it is generated essentially because the car is a common cathode (or anode i never remember convention) and that the fluid flowing over it knocks electrons off/on. I'm hoping this static energy can be funnelled so to speak so in a particular spot it builds up to a significant level (enough to act as an electrostatic scrubber for waste streams).