. AFP . Rupert Stadler has stood down from his role leading Audi but questions are being asked as to why it took so long Rupert Stadler is the long-serving Chief Executive of VW’s subsidiary Audi and a senior member of the group’s management board. He was arrested on Monday as part of an investigation into suspected fraud and false advertising, involving the sale of vehicles equipped with emissions cheating software. He has spent the past few days incarcerated behind the high concrete walls of Augsburg-Gablingen prison – a far cry from Audi’s majestic glass-fronted headquarters...