Had guy catch me at stoplight few weeks ago in a Zenn. It was all electric, boxy, and also had about a 60 mile range and top speed of 25 per the owner. He was very happy about it and said he was able to purchase it from NC dealer for $8500 with all the options except a/c.
Hybrid Technologies a short distance from me converts a Fortwo into a "Dash" which is all electric. Cost per their website is a steep $43.5K. You would have to drive a LOT of miles to justify that price for an electric Smart in my opinion.