London could levy extra charge on most polluting cars

London could introduce an extra charge on the most polluting vehicles entering the centre of town and bring forward an ultra-low emission zone as part of proposals from the city's new mayor which will go to a public consultation. Sadiq Khan won election last week by a record margin and has promised a raft of measures to make London one of the greenest cities in the world, including more low-emission buses and charging points for electric cars. Under proposals released on Friday, drivers of the m