Thank you!! This is the information that i was trying to obtain (independent of the shifter Sport Mode settings).In short, it changes the sensitivity of the accelerator pedal and steering to feel more "sporty" and let you hang the rear end out a little further before the electronic nannies kick in to save you. It's independent of the shifter Sport Mode settings. The whole explanation is too long to post, so go to pages 149-150 of the online Owner's Manual here: http://esd.volvocars.com/local/us/2012-Volvo-S60-Owners-Manual.pdf.
This is basically the same feature that was in the 850 Turbo, only back then it was a switch on the center console tunnel that goes between "econ" and "sport" modes. It's two different transmission programmings. Sport will let you get worse fuel economy when you mash the pedal by focusing on performance over economy. That's really what it comes down to.So then what's the difference between Sport Mode using the gear selector and DSTC Sport Mode chosen in the "My Car" menu? I'm confused.