What can I say, I haven’t had much time to invest on this topic, but my colleague, Lindsay Leveen, The Green Machine has. Have a look at a few of his posts on his blog, Green Explored:

Is the Electric Smart smart or not so smart?
Is the Volt a call to revolt?
Did GM Get the Volt Right?

And don’t let these posts stop you. He has a veritable offering at Green Explored, including…

British engineers develop poo-poo-powered VW!