Or Dieselgate. Or how the authorities of the countries lobbied to keep emissions tests which they knew were easy to fool:

https://www.theguardian.com/environment/2015/sep/24/uk-franc...

When carmakers means employment for voters and tax income, it seems obvious governments will let them get away with crap, their motivation is to remain in power and that is easier when the voters are happily employed: https://qz.com/1045619/germanys-diesel-scandal-shines-a-ligh...