It is wild to me that OEM's can straight up include tech to defeat emissions testing and be allowed to continue building engines after that is found. Like, all regulators should operate from the assumption that the entities they're regulating are working in good faith: but once it's been demonstrated they are not, how can you ever trust a product they produce again? They and every other company found to be doing this should be barred from producing engines for good. Or at the very fucking least, be subject to an INCREDIBLE level of scrutiny regarding their software for a solid many years to follow. Like, every single line audited for compliance.