The Peugeot 308 range has a new flag-ship, in the guise of the new 308 GT.

Available in both hatchback and SW estate body styles, the 308 GT benefits from more powerful engines and a lower ride height.

Power comes from a choice of petrol or diesel power-plants, starting with a 1.6-litre THP petrol engine with 205hp and 285Nm of torque available from 1,750 to 4,500rpm.  It records 50.4mpg on the government economy tests while emitting 130 g/km of CO2.

The diesel option arrives in the guise of a 2.0-litre BlueHDi unit with 180hp at 3,750rpm and 400Nm of torque at 2,000rpm.  It’s said to be able to achieve up to 70.6mpg in the hatchback with CO2 emissions of 103 g/km.

Performance figures haven’t been released, although Peugeot did say that the diesel 308 GT can accelerate from 50-70mph in 5th gear in 5.5 seconds.

The petrol engine is mated to a six-speed manual gearbox, while the diesel is only available with a six-speed automatic developed in conjunction with Aisin AW.

Aiding this performance is a series of chassis tweaks, including a reduction in ride height by 7mm at the front and 10mm at the rear, while suspension stiffness has been increased by between 10-20% depending on engine choice.

The dampers have been given new rates, while the brakes use 330mm front discs and 268mm rear discs (290mm on the SW models).

The styling has received a few tweaks, too: the Peugeot lion emblem has moved from the bonnet to the grille where it’s joined by three horizontal blades, while LED headlights have been fitted as standard, together with new sequential indicators.

Further changes include black door mirrors, tinted windows, side sill extensions, a black rear diffuser, twin exhausts, and 18-inch alloy wheels.  A new colour – Magnetic Blue – also makes an appearance.

The interior hasn’t been forgotten, with dark roof lining and window pillars, red stitching on the seat upholstery, door panels, gear gaiter and floor mats, plus aluminium pedals and stainless steel sill trim.  There are also a few changes to the graphics in the instrument panel and touch-screen display.

The Peugeot 308 GT will be officially unveiled at the Paris Motor Show next month, with ordering set to open in November.  Prices and full specs will be released then, although first deliveries are expected in January 2015.