http://www.guardian.co.uk/environment/georgemonbiot/2011/aug/05/top-gear-bbc

Last Sunday, an episode of Top Gear showed Jeremy Clarkson and James May setting off for Cleethorpes in Lincolnshire, 60 miles away. The car unexpectedly ran out of charge when they got to Lincoln, and had to be pushed. They concluded that "electric cars are not the future".
But it wasn't unexpected: Nissan has a monitoring device in the car which transmits information on the state of the battery. This shows that, while the company delivered the car to Top Gear fully charged, the programme-makers ran the battery down before Clarkson and May set off, until only 40% of the charge was left. Moreover, they must have known this, as the electronic display tells the driver how many miles' worth of electricity they have, and the sat-nav tells them if they don't have enough charge to reach their destination. In this case it told them – before they set out on their 60-mile journey – that they had 30 miles' worth of electricity. But, as Ben Webster of the Times reported earlier this week, "at no point were viewers told that the battery had been more than half empty at the start of the trip."
It gets worse. As Webster points out, in order to stage a breakdown in Lincoln, "it appeared that the Leaf was driven in loops for more than 10 miles in Lincoln until the battery was flat."