Defending the testing methods, Steg said in an interview with German newspaper Bild that the test met international scientific standards such as the inclusion of an ethics commission in the U.S. He claimed that the CEO of the group at the time, Martin Winterkorn, had no knowledge of the experiment.
“From today’s perspective, the experiment should not have been carried out, even under different conditions,” Steg told the newspaper, adding he would have acted differently in retrospect. "I regret that very much. This has nothing to do with scientific learning."
Steg was appointed deputy head of the office for Germany’s then Chancellor, Gerhard Schroeder, in 1998 before taking over as deputy government spokesman four years later. He has served as Volkswagen’s chief lobbyist since 2012.