Their noiseless glide has seen them dubbed the silent killers of the road.
But electric cars could soon be given special 'signature tunes' so that pedestrians can hear them coming and avoid stepping out into their path.
The decision comes following concerns from road safety experts that the 'green' credentials of the zero-emission cars may be overshadowed by a rising accident and death toll caused by the fact that they are so eerily quiet.
Read more: http://www.dailymail.co.uk/sciencetech/article-1272218/Silent-electric-cars-Star-Wars-sound-effects-warn-pedestrians-coming.html#ixzz0nE78s0ng