The sound of spaceships from science fiction films may soon blare out in the streets to stop pedestrians being run over by the new breed of electric cars.
Worried that battery-powered vehicles could become silent killers as they glide noiselessly along the road, the European Commission plans to introduce warning sounds. Not content with the "white noise" of an engine, some car brands could plump for their own signature sound akin to the Millennium Falcon from Star Wars.