Porsche is adding a bit more focus to its sports saloon and estate with the new Panamera GTS and Panamera GTS Sport Turismo.

The new models get extra grunt from their 4.0-litre twin-turbo V8 engine - now up to 453bhp and 620Nm of torque, a rise of 20bhp and 100Nm. The gains mean the GTS models can reach 62mph from rest in 4.1 seconds and top speeds of 181mph (Panamera) and 180mph (Sport Turismo).

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The previous Panamera was offered with a GTS trim level, but this is the first time that the version - which is designed to sit between the S and Turbo in the line-up - has been offered in the Sport Turismo configuration. As well as the engine mods, the GTS models get chassis modifications, with ride height lowered by 10mm compared with the regular Panameras, and a recalibrated version of the PASM active suspension system. The transmission is an eight-speed PDK dual-clutch automatic, transmitting the power through all four wheels.

The GTS badge also brings revised looks, because both cars get a Sport Design package as standard, including a number of black trim elements, especially around the front end. The new spec also includes 20in Panamera Design wheels, while the cabin gets a mixture of black Alcantara and anodised aluminium. The GTS models also both get a head-up display - a first for the Panamera range.

A heated multi-function steering wheel, with gearshift paddles, is also part of the spec - and Porsche will also offer the Interior GTS package as an option, giving buyers the chance to customise cabin elements like the rev counter, stitching and logos.

The Panamera GTS and Panamera GTS Sport Turismo are available to order now. The Panamera GTS costs £105,963, while the Sport Turismo carries a premium of just over £2,000, at £108,110.

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