Over the weekend, it was reported that German automakers funded research  where monkeys were exposed to diesel exhaust fumes  from an emissions-cheating VW Beetle.  Volkswagen Group, Daimler, and BMW all condemned the study — saying they were appalled by the logistics employed for research they were funding.

On Monday, German newspaper  Stuttgarter Zeitung  expanded on EUGT’s unsavory research practices — claiming it not only exposed animals to exhaust gasses but people as well. The German government is up in arms over the revelation. “These tests on monkeys or even humans cannot be justified ethically in any way,” said Chancellor Angela Merkel’s spokesman, Steffen Seibert, on her behalf.

Social Democrat Stephan Weil, who is a VW supervisory board member, called the testing “absurd and abhorrent … Lobbying can be no excuse whatsoever for such testing.”

We are conscious of our social and corporate responsibilities and are taking the criticism regarding the study very seriously. We know that the scientific methods used by EUGT were wrong and apologise sincerely for this. The EUGT has been in liquidation since June 30, 2017.
— Volkswagen Group (@VWGroup)
27, 2018[/URL]

Unlike the exhaust testing on monkeys, specific details on the human experiment are quite a bit lighter. While subjects were exposed to the irritant gas nitrogen dioxide (which is prevalent in diesel fumes), exactly how remains unspecified. The 25 subjects are believed to all have been young adults in good health and were exposed to various concentrations of the gas for several hours at a time at a facility run by Aachen University.

Automakers are, once again, in the position of having to explain the matter. Daimler condemned the research, saying it had no say in establishing how EUGT conducted itself. “We are appalled by the extent of the studies and their implementation,” a spokesperson said. Daimler previously mentioned it would conduct an investigation into the group’s decisions.

Volkswagen has also distanced itself from the research, saying it will look into the situation. All three automakers have claimed to have limited knowledge of the group’s proceedings.

That’s not good enough for the growing number of outraged politicians. Many, like Stephan Weil, are demanding automakers immediately provide details on what the goals of these types of exhaust studies were.

“At the end of the day, the purpose of such experiments is the decisive factor. If for example, safety and health in the workplace were being tested, as Aachen University has suggested, and ethical standards were adhered to, it is defensible,” Weil told a news conference on Monday. “Where experiments served the purposes of marketing and sales, however, I cannot think of an acceptable justification for such an approach.”

A version of this article first appeared on thetruthaboutcars.com