Mr Drees, what area are you responsible for?
Rainer Drees: I am responsible for the acoustic characteristics of M automobiles. This relates to everything that the driver hears as well as everything that can be perceived in the surroundings.
One of my jobs is to ensure that our M cars sound authentic and full of character while at the same time meeting the various worldwide regulations regarding external noise levels. This is above all a matter that concerns the design of exhaust systems.
Let's talk about the sound and the exhaust system of the new BMW M3 and BMW M4.