These articles (on independent.co.uk and bbc.com) explain that the team of American researchers involved in the discovery of the Volkswagen scandal, was limited to 5 or 6 people including 2 graduate students. Initially, this team did not expect to find any emission issues. And when they did, they first thought something was wrong with their test equipment because of the enormous difference with the legal limits. After informing Volkswagen about their findings, it took almost a year and a half before Volkswagen finally admitted that they deliberately cheated on emission tests.
Find out how the work of just a hand full of researchers took down one of the most powerful companies in the world.
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