Them, given that almost every major car manufacturer attempted to cheat in one way or another in order to meet the stringent Euro 6 Diesel emissions restrictions (while still keeping their cars competitive in terms on economy and performance), the subsequent huge fines and criminal convictions, and the ensuing civil class-act law suites, I think that Euro 7 Diesel is pretty much dead in the water - no Western government will accept it as a viable option, not with the history track of the failed implementation of Euro 6 Diesel. In short, Diesel car manufacturers had their chance to demonstrate that they can be trusted to make Diesel engines that won't harm our health - and they blew it.