https://www.vice.com/en_us/article/akegmb/the-government-said-your-electric-vehicle-cant-sound-like-say-fart-noises

In 2019, the National Highway Traffic Safety Administration (NHTSA) proposed a rule that would allow electric vehicle owners to choose from a suite of noises the car could make at low speeds, warning others of its presence, since EVs can be quiet under 10 mph or so. But after hearing extensive feedback from the public, NHTSA has decided that this will in fact not be allowed, according to Reuters, because of a “lack of supporting data” that it would have any benefits but would “allow manufacturers to make more obscure sounds that only appeal to a small minority of (hybrid electric) owners.”

NHTSA appears confused. Make obscure sounds that only appeal to the people inside of the car? I was under the impression, based on the behaviors of the car owners I am often subjected to, that this was one of the major benefits of car ownership.