The U.S. Environmental Protection Agency alleges that Volkswagen installed the diesel "defeat device" in some Audi and Porsche SUVs, according to USA Today. 

The EPA asserts that the Volksawgen Group not only installed the cheating software in its VW cars, but also installed it in 3.0-liter V-6 TDI diesel engines used by Audi, Porsche and VW too, Green Car Reports noted.

During an EPA press conference today, the organization revealed the other vehicles affected by the engine control technology that allows it to cheat emissions tests. The affected vehicles are the 2014 Volkswagen Touareg TDI, the 2015 Porsche Cayenne Diesel and five 2016 Audi models: The A6, A8 and A8L TDI sedans; the A7 TDI hatchback; and the Q5 TDI sport utility vehicle, according to Green Car Reports.

The California Air Resources Board said at the press conference that an estimated 10,000 luxury diesel SUVs made by the Volkswagen Group from 2014 through 2016 are affected, WRAL reported.

The German automaker designed the engine software to defeat emissions tests, WRAL stated. When the vehicles with the "cheat code" drove on the road they emitted up to nine times the allowed amount of nitrogen oxide pollution into the air.

Volkswagen faces fines of up to $37,500 for each vehicle in violation of the EPA standards, WRAL noted. That could mean up to $375 million in penalties in addition to the $7.38 billion dollars VW set aside to pay for recalling and fixing the affected vehicles in the future.