© Licensed to London News Pictures. 06/06/2015. Bristol, UK.  A Mitsubishi Outlander GX4h 2.0 PHEV Auto at a display of electric, hybrid, and low emission vehicles at Bristol's Millennium Square sponsored by EDF energy.  The cars are engineered to produce no or low emissions and pollution to reduce the impact of transport on the environment.  Photo credit : Simon Chapman/LNP