Guardian: The government will tomorrow finally put flesh on the bones of its long-awaited £250m electric car strategy. The transport secretary, Geoff Hoon, has announced incentives of up to £5,000 for consumers to buy electric cars and plans for cities to become testing grounds for how drivers will use and charge their vehicles. But the electric car has had numerous false dawns in the past. Motor manufacturers have had electric vehicles on their drawing boards since the 19th century – the first …