2017 Porsche Panamera Turbo Executive-Is This Super Sedan a Proper Porsche?

Jonny Lieberman explores the aspects of the all-new, second-generation four-door from Porsche. The facts of the car are (of course) impressive: 550 hp from a 4.0L, twin-turbo V-8, coupled with a new eight-speed PDK transmission that powers all four wheels, and all-wheel steering