Mandatory Credit: Photo by RONALD WITTEK/EPA-EFE/REX/Shutterstock (10110596v) An employee wearing gloves checks a Porsche sign at a production station of sports cars at the German car manufacturer Porsche in Stuttgart, Germany, 19 February 2019. Porsche AG is a listed German manufacturer of luxury sports cars, SUVs and sedans based in Stuttgart. Porsche AG will present the results of the 2018 financial year at the annual press conference on 15 March 2019. Porsche factory in Stuttgart, Germany - 19 Feb 2019

Sports car maker Porsche has been fined €535m by public prosecutors in Stuttgart for “negligent violations of supervisory duties” which allowed the diesel scandal to occur.

The German carmaker, a unit of Volkswagen Group, was wrapped up in the decade-long cheating episode exposed by US regulators in 2015 because some of its cars used engines made by sister brands Audi and VW. Porsche said it “never developed and produced diesel engines”.

“According to the investigation results of the public prosecutor’s office in Stuttgart, there have been negligent violations of supervisory duties in a department of the development department several levels below the board in the exhaust gas-related testing of vehicles on their regulatory compliance,” the carmaker said.

Porsche said it would not file an appeal against the penalty notice for negligent breach of duty. Its acceptance brings to an end the prosecutors’ lawsuit against Porsche.

Last year VW Group was fined €1bn by public prosecutors in Braunschweig, near its Wolfsburg headquarters, for its criminal role in the scandal, in which 10.7m cars were equipped with software that cheated tests and emitted up to 40 times the permitted level of nitrogen oxide in the real world.

Porsche said VW had already increased its provision to cover the fine. Last week VW said total provisions now exceed €30bn.

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