Embattled VW sinks deeper into mire of emissions-cheating scandal

Shares in Volkswagen took a renewed battering Wednesday as evidence emerged that the massive pollution cheating scandal engulfing the company may also involve petrol engines, not just diesel engines. VW's shares were once again the biggest losers on the Frankfurt stock exchange, slumping more than 10 percent in early trade. Until now, the emissions-cheating scandal had centred on so-called defeat devices, sophisticated software fitted into diesel engines to skew the results of tests for nitrogen