Electric cars are the future, so we're told. But even so, few still can put up a strong argument for favouring the green alternative to the gas-guzzling motors we have taken for granted for decades. For one; mileage ranges, while ever-improving, are still far from substantial for the average road user. Now, the era of the electric car is one step closer, with scientists ably demoing how electricity can be passed through concrete to charge cars on the move, paving the way for an electric motor future.