Well, any scheme that makes us think twice about using our car has to be a good thing. Sure it?s a revenue raiser, and hopefully the revenue can go into improved cycle lanes etc. Seems that the parameters are a bit arbitrary tho... This is an interesting read: Old banger v diesel: Which is more toxic? http://www.bbc.co.uk/news/magazine-41640746 I am currently without a car as my husband now works away from home half the week. I?ve looked into zip cars and Ubers for the occasions where I might need a car... it is definitely cheaper than getting a car! I want to change our old Auris for a Prius, but my god they?re pricey. In a few years we?ll all be sharing self-drive vehicles won?t we?