A little green van called ELVIN is whizzing around the University of Warwick as part of a major research project aimed at tackling the safety issues linked to the lack of sound from electric vehicles.ELVIN will be able to emit many different sounds aimed at alerting pedestrians and other road users that he is nearby.People who hear ELVIN’s sounds will be asked to give their opinions on a range of issues including whether they are suitable as a warning or whether they are just annoying.