One of the benefits of an electric vehicle and many hybrids is that they reduce noise pollution compared to their gas guzzling brethren. On the surface, that sounds like a good thing, until you get plowed into by one because you didn’t hear it coming. To prevent that from happening, the U.S. Department of Transportation’s National Highway

Source: Hot Hardware – Hybrids And EVs Must Produce Noise At Low Speeds By 2019 To Reduce Pedestrian Collisions