Porsche has added a number of bells and whistles to an already very strong 4-door Porsche Panamera Gran Turismo to bring the world the zippier 2012 Porsche Panamera Gran Turismo Sport, even higher-performance, sportier version.
Porsche has lowered the body by a centimeter and added an "especially sportily tuned chassis with air suspension and PASM", which should presumably lead to tighter cornering. Cosmetic tweaks have been applied both hither, thither and yon on the exterior, including black highlights for that "I know I'm just schlepping the kids to the ex-wife and her irritatingly vegan socio-anthropologist boyfriend, but I'm doing it with attitude" feeling.