Stephen Knight, Liberal Democrat London Assembly environment spokesperson, commenting on the diesel emissions fixing scandal facing Volkswagen said:
“The unfolding VW emissions fixing scandal is clearly demonstrating that, despite what motor manufacturers have been claiming, there is no such thing as a clean diesel car. Real-world tests show that so-called "clean" (Euro 6) diesels actually emit many times more poisonous gases than they are legally entitled to.
"The Mayor Boris Johnson's current proposals for his 'Ultra Low Emission Zone' (ULEZ) count Euro 6 diesel cars as 'ultra low emission vehicles' allowed to enter central London free of charge. This policy clearly now hangs in tatters and must be revised.
“It is now abundantly clear that no diesel cars should be allowed to enter the ULEZ zone from 2020.
"Central London, like Paris, must become a diesel-free zone."