These are the top 10 Plug-in Electric Cars that are eligible for the UK government's Plug-in Car Grant.
The Toyota Prius Plug-in Hybrid boasts impressive fuel economy of 134.5mpg, along with emissions of just 49g/km CO2; these figures are achieved by the ability to plug the hybrid car into the mains to charge the battery.
The all-new Volvo V40 is - at last - the companys contender in the vital C-segment hatchback class, and in the case of the D2 it combines low emissions of just 94g/km CO2 and 78.5mpg with an upmarket feel.
The Vauxhall Astra GTC 1.7CDTi looks good, its practical for a coupe, and its capable of 62.8 mpg, but does this diesel engine work in a coupe?
To test its low emission 4x4 credentials, we pitched the new Peugeot 508 RXH diesel-hybrid against the racehorse of footballer Michael Owen so which one won?
The Renault Twizy, which is essentially an electric four-wheeled scooter, felt so much like a go-kart on its launch in Ibiza that it inspired us to take it for a test around an actual go-kart circuit.
The new Hyundai i20, which had its world premiere at Geneva, will have the lowest CO2 emissions of any conventional powertrain, at 84 g/km.
The BMW 520d EfficientDynamics Saloon has a combined economy figure of 62.8 mpg and emissions of just 119 g/km CO2; surely such supermini-levels of emissions mean that this must be an eco-special with compromises?
The 235.4 mpg Vauxhall Ampera is an electric family hatchback, but one with unlimited range thanks to the on-board petrol range-extender.
The smart fortwo cdi, capable of 85.6 mpg, is the UKs most economical car, yet the smart fortwo electric drive (ed) doesnt use any fuel at all; so which is best?