There is a lot more riding on these tests than is currently being admitted. The simple fact is that based on the tests and the impact of NOx on population health, the sale of diesel cars should be stopped immediately.<p>Even London  has doubled the congestion charge fee for diesels.<p>A further step would be to recognise that petrol cars also emit NOx and that the long term goal should be the removal of these from the road.<p>Politically this is a hard thing to do, however some countries are forcing the issue <a href="http:&#x2F;&#x2F;www.autoexpress.co.uk&#x2F;car-news&#x2F;consumer-news&#x2F;95237&#x2F;dutch-move-to-ban-diesel-and-petrol-cars-by-2025" rel="nofollow">http:&#x2F;&#x2F;www.autoexpress.co.uk&#x2F;car-news&#x2F;consumer-news&#x2F;95237&#x2F;du...</a><p>This is going to hurt the car industry in ways we don&#x27;t fully understand yet. In the short term I would be end-of-lining their diesel production and restructuring to electric.