http://connevted.blogspot.co.uk/2015/04/china-low-speed-evs-booming.html
Lightweight, cheap, slow, electric cars are selling well in China. So could there be a market in Western cities?
Which makes you wonder about the eventual failure of the G-Wiz. What went wrong?
The puzzle is that light cars and light vehicles in general have been fairly common and successful in Europe, but get treated as a bit weird in the UK.
[1]http://en.wikipedia.org/wiki/REVAi
Personally I think those who live in and around London are pretty well served with public transport. It's those people with longer commutes in other cities around Britain that need sensible transport solutions, but it's not one size fits all...
Not easy to solve.
You don't need an SUV for these journeys but if you've already got one, then it works. And maybe that's the issue. If you only have one vehicle (each), it needs to be multi-purpose. Which means that anything else (even a bicycle) is more of a leisure pursuit.