Porsche will offer a Gran Turismo Sport aka GTS trim for the 2019 Panamera lineup and at the heart of Stuttgart’s four-door luxury saloons will be a 4.0-litre twin-turbo V8.

Already used in the Turbo models of the second-generation Panamera, it produces 460 horses (from 6,000-6,500rpm) and 620Nm of torque (from 1,800-4,500rpm) and that’s a healthy 20 horses and 100Nm more than the previous GTS. That one had a naturally-aspirated 4.8-litre V8, but these days it’s all about downsizing and so it’s been relegated. Anyway, thanks to the sports exhaust system, the pair will make all sorts of wonderful sounds on their way to their top speeds, that being 292kph for the Panamera GTS and 289kph for the Panamera GTS Sport Turismo (the smaller GTS weighs a hefty 1,995kg and the Sport Turismo is 30kg heavier at 2,025kg). But, in spite of all of that capability, they won’t suck the pumps dry; the former has a claimed efficiency of 10.3-litres per 100km while the latter has 10.6-litres per 100km.

Unlike the 911 GTS, no manual is offered — but nobody will complain about the snappy PDK dual-clutch transmission; it has gained an extra gear ratio over the previous car and the eight-speed is linked to the Porsche Traction Management all-wheel drive system which will provide plenty of grip from all four corners.

The GTS duo, which will slot between the Panamera 4S and Panamera Turbo variants, feature a three-chamber adaptive air suspension, a 10mm lowered chassis, a sportier adaptive suspension (PASM) tune and 390mm front and 365mm rear disc brakes fitted inside 20in wheels. Rear-axle steering is optional but even if you don’t opt for that, these two still promise to be tremendous fun to drive.

As before, a raft of optional equipment on other Panameras will come standard here such as the Sport Chrono package and Sport Design package; they’ll each receive a host of black trim including black Alcantara throughout the cabin and GTS-specific seats that look like they’ve got more than enough bolstering to hold you in place for some spirited driving. Other goodies include a head-up display — making the GTS the first Panamera to feature the tech — anodised aluminium trim, a heated multifunction sports steering wheel with gearshift paddles, Apple CarPlay support, and a surround view camera.

The new GTS models are available to order now.