In April 2014 the European Parliament approved the legislation that requires the Acoustic Vehicle Alerting Systems (AVAS), which is mandatory for all new electric and hybrid electric vehicles. The new rule established a transitional period of 5 years to comply with the regulation.
http://europa.eu/rapid/press-release_IP-14-363_en.htm
So i suppose if it is not pre fitted we can wait 5 years, luckely.
What's next, sound level values for speaking in public ?
BTW: how about electric bikes and those old ladies ? They drive fast and you don't here them coming...
Sorry for the english, my german writing is not good.