There's more to the GTS package than two more cylinders and an extra 1.1 liters of displacement. A standard adaptive air suspension (a $2,190 option on the 4S) with a GTS-specific, 0.4-inch reduction in ride height compared to the Panamera 4S provides sportier handling, while the must-have Sport Chrono package (a $2,290 that adds Sport Plus, a Sport Response button, and launch control on both this and the 4S) comes standard too. But our favorite element is the sport exhaust system, featured on every Panamera GTS. The quad-tipped exhaust brings out the very best in the V8, giving it a louder, more soulful note that encourages the driver to wind out the engine. We complained about this exhaust setup missing on the last Panamera Turbo we drove (it's a $3,490 option there), and sampling it on the GTS just confirms what we suspected a few years back: Porsche's 4.0-liter V8 is at its best with this exhaust.