Mercedes-Benz, Honda, Mazda and Mitsubishi have joined the growing list of carmakers whose diesel cars are more polluting than allowed under current regulatory limits, according to data obtained by the Guardian.
"In more realistic on-road tests, some Honda models emitted six times the regulatory limit of NOx (Nitrogen Oxide) pollution while some unnamed 4x4 models had 20 times the NOx limit coming out of their exhaust pipes," the U.K. newspaper said.
It cited Nick Molden, whose company Emissions Analytics tested the cars as saying: "The issue is a systemic one" across the industry.
http://www.cnbc.com/2015/10/09/four-more-carmakers-join-emissions-rigging-list-guardian.html