German authorities uncover emissions-cheating collusion among diesel automakers

2014 Mercedes-Benz E250 BlueTec 4MaticNew documents revealed in a German investigation into diesel emissions cheating show that German automakers, including Volkswagen, BMW, and Mercedes-Benz may have colluded to limit the amount of emissions-cleaning AdBlue diesel exhaust fluid the cars used. The news was reported by the German newspaper Handelsblatt on Tuesday. The AdBlue urea...