I've just been reminded of a post of mine from 2012 about E-Velomobiles.
https://plus.google.com/+JulianBond23/posts/bSnwp6n5TA2

I think we need more electric Velomobiles on the roads. It's just a shame that they really don't fit existing US and EU regulations. Perhaps they could be licensed as Quads, but I suspect there's still a whole load of awkwardness around insurance, let alone TUV and MOT testing. I think something that can do 50mph should require safety checking, be licensed and insured, but I also want this to be easy for one-off or low production quantities.

There's a Velo that I occasionally see around here in Hertfordshire. They're surprisingly tiny. I'm not at all sure how well it mixes with the BMWs, Audis and all the SUVs being driven aggressively by the locals. Let alone the tipper aggregate trucks.  I'm really not sure 2015 UK roads and traffic can cope with these sort of small slow, low tech vehicles. And last weekend I was in deepest Oxfordshire and came across a bunch of cyclists waving to get mme to slow down, because hidden around the bend on the single track road was a couple of trikes struggling slowly up the hill. Electric power would have really helped them and made them somewhat safer. 

http://www.icebike.org/30-iconic-velomobile-designs-from-the-past-85-years/
http://www.lowtechmagazine.com/2012/10/electric-velomobiles.html
http://www.lowtechmagazine.com/2010/09/the-velomobile-high-tech-bike-or-low-tech-car.html
http://www.velomobiles.co.uk/