Porsche today announced the forthcoming addition of two sporty models to its Panamera range. The new Porsche Panamera GTS and Porsche Panamera GTS Sport Turismo models add new breadth to the lineup for customers seeking a sportier driving experience positioned between the Panamera 4S and Panamera Turbo variants. A four-liter twin-turbo V8 engine generates peak output of 453 horsepower from 6,000 to 6,500 RPM and peak torque of 457 lb.-ft. from 1,800 to 4,500 RPM.... continue