Why do all EVs make the same quiet hovering sound when they drive ?

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Why do all EVs make the same quiet hovering sound when they drive ?

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Anonymous 0 Comments

I was curious what the regulation actually says. Here it is: [https://www.regulations.gov/document/NHTSA-2016-0125-0001](https://www.regulations.gov/document/NHTSA-2016-0125-0001)

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