The chairman of Volkswagen has said that diesel exhaust tests involving monkeys were “totally incomprehensible”, and pledged a full and unconditional investigation.
Hans Dieter Poetsch’s comments come in the wake of a report by the New York Times that a research group funded by car companies exposed monkeys to diesel exhaust from a late-model Volkswagen, while another group was exposed to fumes from an older Ford pick-up.
The experiments were carried out in 2014 before Volkswagen was caught using software that let vehicles cheat on vehicle emissions.
The tests were intended to show modern diesel technology had solved the problem of excess emissions.
The report was followed by one in the Stuttgarter Zeitung that the now-closed research group had also experimented on humans.