VW's Audi head questioned over emissions scandal

The head of Volkswagen's luxury car division Audi has been questioned by investigators looking into the company's emissions scandal, VW Chief Executive Matthias Mueller said on Tuesday. Mueller told reporters at an event in Hanover that Audi boss Rupert Stadler had been questioned but declined to give details. Earlier, Spiegel magazine reported that experts from U.S. law firm Jones Day, which was tasked by Audi last year to investigate the scandal, would question Stadler about when he found out