Now that the new Porsche 911 GT3 has made its debut, attention turns to the next performance variant of the Type 991 Porsche 911 family, the infamous Turbo.

Though we’ve been spying prototypes of the car for several years now, today, we have a new set of shots that show the new Porsche 911 Turbo almost completely undisguised.

Being this late into its development, we expect the new car to debut soon, most likely at September’s Frankfurt Auto Show before reaching showrooms around the end of the year as a 2014 model.

The Porsche 911 Turbo is a car that needs no introduction here at Motor Authority.

Able to keep up with some of the best supercar models around; its combination of turbocharged power and all-wheel-drive traction ensures it’s almost always the first out of the blocks when the lights turn green.

Looking closely at the prototype of the next-generation model, we can clearly see the trademark side intake ports of the 911 Turbo, as well as its wider rear and oversized spoiler.

The rear bumper also features additional cooling vents on its flanks as well as an integrated rear diffuser. We can also see that the 911 Turbo has a unique exhaust design.

In the outgoing 997 generation, the 911 Turbo is some 44 mm wider than the regular Carrera and the same will be true for the new 991, as confirmed with the launch of the Carrera 4 models, which also sport a wider track.

Peak output should also be slightly higher than the 530 horsepower of the most recent 911 Turbo S, so expect a figure of around 550 horsepower to bring its output in-line with that of its Japanese nemesis, the Nissan GT-R.

An advanced tri-turbo setup has been reported as a possibility, with the addition of the third turbocharger aimed at improving low-end response for blistering off the line performance. But that’s not all as an uprated ‘PDK-S’ dual-clutch gearbox  may also get the cut. It’s unclear if a conventional manual will be offered, given Porsche’s moves with the PDK-only 911 GT3.

Stay tuned for full details on the 2014 Porsche 911 Turbo soon, but in the meantime read about and ogle more spy shots of the convertible version of the car, here.