In the article, sound regulations in Europe make sure that the car's exhaust sound output is measured in its loudest setting, rendering exhaust systems that have switchable butterfly valves not much of a use.
As reported by Motoring, the head of Product Planning for the smaller AMG cars, Bastian Bogenschutz, said that cars sold outside Europe will also come with the same restrictions.
“It’s coming from the European regulations. We can [design specific exhausts] but it’s too expensive for every market to do it, it’s pretty difficult,” Bogenschutz explained.
To counter that, Bogenschutz said that Mercedes-AMG have to rely on sound enhancement systems that channel exhaust sound into the cabin.
“The regulations were getting pretty difficult for the sound to just come from the exhaust system. So we added the AMG pure performance sound, there we take the real sound from the exhaust system, the pulsation of the real sound and move it inside the car. It works together with the exhaust system.”