New Porsche Panamera Turbo S packs 550 hp and 800 Nm of torque

New Porsche Panamera Turbo S packs 550 hp and 800 Nm of torque: "Porsche has unveiled the top dog in its Gran Turismo line. The new Panamera Turbo S raises the four-door sports car bar with a 4.8 liter, V8 biturbo charged engine that delivers 550 hp (410 kW) , which is 50 hp (37 kW) more than the engine found in the Panamera Turbo."