Porsche has whisked the covers off its new is 911 Turbo coupe and convertible models, which boast an all-new 3.8-liter twin-turbocharged flat-six engine rated at 500 horsepower. Believe it or not, this is the first entirely new engine in the 35 year history of the Turbo. The previous 911 Turbo was powered by a twin-turbocharged 3.6-liter flat-six cranking out 480Hp and 620Nm of torque.

Based on the same 3.8-liter flat-six found on the facelifted 911 Carrera S models, the new engine comes with features such as Direct Fuel Injection and twin turbochargers with variable turbine geometry.

Furthermore, as an option, the new six-cylinder may be combined for the first time with Porsche’s seven-speed PDK Doppelkupplungsgetriebe (that’s Double-Clutch Gearbox) that can be specified with steering-wheel mounted paddle-shifts. The 911 Turbo is fitted with a six-speed manual gearbox as standard.

According to ‘das’ Germans, the new Turbo goes from zero to 100 km/h in 3,4 seconds and on to a top speed of 312 km/h or 194 mph.

Aside from the all-new powertrain, Porsche said that the updated Turbo benefits from further improvements in driving dynamics and detailed enhancement of the PTM fully controlled all-wheel drive and PSM Porsche Stability Management systems.

As with the rest of the 911 range, the Turbo receives mild styling tweaks that include new front and rear lights and minor changes in the interior.

The new model will be presented to the public for the first time at the Frankfurt Motor Show from 17 – 27 September with sales of both Coupe and Cabriolet variants starting in Europe at the end of November. The Euro base price without value-added tax and national specifications is €122,400 for the Coupe and €131,800 for the drop-top model.