Its Operations Director Gray Davies has recently published a paper which analyses the emissions of electric cars.
With virtually no emissions on the street, the process of charging them with electricity does create upstream emissions at the power station averaging 75g per kilometre. This compares to 89g emissions for the Toyota Prius or 208g for the average UK car.
I note that Kia are marketing their new petrol 2012 Picanto at the Geneva Motor Show this month (launch in UK this spring) boasting emissions 105g per kilometre. The Nissan Leaf electric car is also due to market shortly with its on street emissions around zero.
There is a small problem, though. The Leaf will cost you almost £31,000 (though you may get a £5k government subsidy off that figure) compared to the Picanto's cost of around £8,000!