Here is our concept trike. Tests show a maximum speed of 60mph and we are hoping for a range of over 100 miles due to the low drag tyres, narrow body and efficient motor and controller with regenerative braking. The whole trike weighs only 198 kgs!
More info on how to build an electric vehicle can be found in my book which covers all aspects of EV design.
http://www.amazon.co.uk/HOW-DESIGN-BUILD-ELECTRIC-VEHICLE-ebook/dp/B00HMAPNQM/ref=sr_1_2?s=digital-text&ie=UTF8&qid=1403711716&sr=1-2&keywords=electric+car+how+to
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