Presumably they lied about CO2 emissions to achieve a lower taxation band.
Tim
How dangerous are diesel emissions? | DW Documentary
I watched that the whole way through (and managed to stay awake). The conclusion appeared to be that the EU has set NOx levels lower than necessary, and that most air pollution is from other sources. There was a passing reference to brake and tyre particulates being far higher than those from engines. They didn't draw the possibly obvious conclusion that battery powered vehicles could be more polluting in this regard.
So the conclusion seemed to be "not dangerous".
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.