Both are powered by a 4.0-litre V8 bi-turbo engine generating 338 kW of power and maximum torque of 620 Nm, getting them from zero to 100 km/h in 4.1 seconds when used with the standard Sport Chrono package. Power is transmitted to the Porsche Traction Management (PTM) all-wheel drive system by the eight-speed PDK dual-clutch gearbox.
Adaptive air suspension with three-chamber technology is fitted as standard. The sports chassis has been lowered by 10 millimetres. Porsche Active Suspension Management (PASM) has been adapted for an even sportier calibration.
The GTS models are equipped with 20-inch Panamera Design wheels painted in black as standard. Inside are large brakes, 390 millimetres in diameter at the front and 365 millimetres at the rear, deliver outstanding deceleration.
Visually, the Sport Design package with a new front apron in black, and black trims at the rear apron, along with a variety of darker elements.
The interior features Alcantara on the seat centres, door panel armrest and centre console. The interior trims are finished in anodised aluminium.
A heated multi-function sports steering wheel with gearshift paddles.
Infotainment is by Connect Plus featuring the LTE telephone module with SIM card reader, Apple CarPlay and the Porsche Connect App.
A first for the Panamera: head-up display with many configuration options
The GTS models offer all the same innovations as the second-generation Panamera range. These include the digital Porsche Advanced Cockpit, assist systems such as adaptive cruise control, Surround View, comfort access and the optional rear-axle steering.
The new Panamera GTS models are available to order now and are due to arrive in Australia in the first quarter of 2019.
Panamera GTS is available from $364,100 and GTS Sport Turismo from $371,400 plus on-roads.