>> The chief executive of Audi, Volkswagen Groups premium brand, has been arrested in Germany. Rupert Stadler is most senior official to be taken into custody over VW's emission tests cheating scandal. He has been detained over fears that he might obstruct and hinder the investigation. In 2015, VW admitted to using illegal software to cheat US emissions tests on diesel engines.
The scandal led to a regulatory crackdown across the entire auto industry. As a result, CEO Herbert Diess is trying to speed up the company's shift towards electric vehicles, and he's introducing a new leadership structure, which currently includes Stadler. The US has also filed criminal charges against former CEO Martin Winterkorn.
But he is unlikely to face authorities, as Germany doesn't extradite its nationals outside the EU. Audi and Volkswagen have both reiterated that there is still a presumption that Stadler is innocent.