Copyright jalopnik
You didn't think a company as advanced as Porsche would stop at a loud mode and a quiet mode, did you? Of course there's much more than that. Beyond simply opening the exhaust valves, the patent mentions how the feature can also activate sport mode, open the windows, crank the heater if it's cold out, downshift by at least one gear, and open up the active exhaust. The patent says this feature is meant to make the acoustic driving experience more emotional during the tunnel passage. It also discusses the potential for this technology to apply to its electric vehicles, and for convertibles to even lower the top for maximum sound enjoyment. The quiet mode, in contrast, would roll the windows up, close the exhaust flaps, and step up the car's active noise cancellation functionality to minimize intrusion from that awful racket they paid hundreds of thousands of dollars for. As of now, this is just a patent filing which does not automatically mean that this technology will be brought to Porsche's production cars, but us enthusiasts can certainly hope.
