“Hybrid and electric vehicles (EVs) are known for driving silently, without the roar of a gas engine.
But due to safety concerns for pedestrians unable to hear the quiet cars, the federal government will soon require all hybrid and electric cars be equipped with an artificial noise generator.
READ: Hybrid Scorecard: Which Cars Came Out on Top?
Ford, which plans to release its Focus Electric later this year, is letting the public vote on four sounds for the new electric vehicle on its Facebook page.”
Ford Asks What an EV Should Sound Like via Alexis Petru – Earth 911