2017 Porsche Panamera first drive: The 4-door Super Sedan to beat

Porsche is putting all luxury sedan automakers on notice: beware the one-two punch of the 2017 Panamera 4S and Panamera Turbo. Completely redesigned, in the four-door's first major overhaul since its debut in 2009, which one you decide upon depends heavily on both your pocketbook and your appetite for raw performance. SlashGear's a heavy tech site so you know I'm …