VW, Mercedes, Opel, Fiat launch buybacks of dirtiest diesels in Europe

2015 Volkswagen Golf TDI SEAlmost two years ago, the Volkswagen diesel emission scandal burst into public view, and nothing has been quite the same since then. The news that VW Group engineers had deliberately cheated on eight years of emission tests for the "clean diesels" sold by Volkswagen, Audi, and Porsche sent shockwaves around the world. Settling the criminal charges...