Set for a world premiere next week at Geneva is this Porsche Panamera Sport Turismo
tuned by German-based Techart. Techart calls it the GrandGT Supreme styling package, specifically for the Panamera Sport Turismo
. Styling wise, it dramatically enhances the car’s presence, starting with a set of 22-inch wheels with the entire car painted in gorgeous racing green. Also added is a Techart sport exhaust system with titanium and carbon fiber tailpipes. But it’s the interior that’s received the most attention.