VanguardLH wrote:

Interesting how the alternative model was used for most of the
driving (underdoses the NH3 to convert NO) but switched to the main
model during the conditions of NEDC testing. Man, they sure are
tricky.

If you're going to set a test for vehicles, better make it a good test
because companies will spend a *lot* of money to try and game it ... I
believe WLTP has now replaced NEDC.