Exhaustive and endless emissions news

We’ve heard an awful lot at great length about NOx and the VW group in the past few days.

However, the story didn’t start then. In 2014 a body called the ICCT produced a report about comparisons between real world and test CO2 and NOx emissions for light duty diesel engines. As we’ve heard, VW models didn’t do at all well.

But that’s not the whole story. Look at this graph, taken from the report which is here. The report doesn’t name the makers or the vehicles involved but knowing that three of the tests are by WVU and that they tested two VWs and a BMW we can work out that A, B and C are BMWs and that D, E, F, G and H are VAG products. We can see that the two highest readings are for vehicles L and H . H is therefore a VW product putting out a lot of NOx.

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So, what’s L, which is the worst performer? The report describes it as a “luxury sedan”. This story has a lot further to go!

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