https://phys.org/news/2018-07-germany-opel-probe-dieselgate-scandal.html

According to the mass-selling tabloid Bild, Opel's Cascada, Insignia and Zarifa models are under investigation, totalling 60,000 vehicles.

Without citing its sources, the paper said Germany's Federal Motor Transport Authority (KBA) had "strong evidence" to suggest exhaust management systems in some models had been totally deactivated during normal driving.