What Car? says...
If ever a car was preordained to be electric, surely it’s the Smart ForTwo? When you think about it, the idea of a locally polluting petrol engine in a car designed specifically for clogged and smogged cities seems wholly antediluvian.
And that's not all. As the charging infrastructure gets better and better every year, using an electric car becomes easier and easier, and because it’s an EV, the ForTwo buys you a free ticket through the London Congestion Charge zone. Oh yes, and the government will even give you a grant to reduce the initial purchase cost.