BMW offices get 'inspection' in preliminary collusion probe

BMW said Friday that European Commission staff conducted an "inspection" at company offices in Munich earlier this week in connection with news media allegations that German carmakers colluded on technology including diesel ...

NOx gases in diesel car fumes: Why are they so dangerous?

Nitrogen oxides, poisonous gases that contribute to acid rain and suffocating smog, are found in the fumes of diesel cars like the ones Volkswagen has admitted to fitting with emissions-cheating software.

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