These zones could involve charges for the most polluting vehicles as well as incentives to switch to ultra low emission vehicles, including priority at bus lanes and traffic lights. (politics.co.uk)
These allow manufacturers that make very low emission vehicles, such as electric vehicles, to claim extra credits for them, so they can continue to produce more heavily polluting vehicles as well. (scientificamerican.com)
The two - seater low emissions vehicle is fuel - efficient but it uses only petroleum diesel. (ens-newswire.com)