When the 991 variant of the Porsche 911 GT3 was unveiled, it took purists a bit by surprise. It was a major departure from previous GT3s with its electric steering, PDK-only transmission option and rear-wheel steering. Probably the biggest concern for purists is that the company's drivers' car no longer offered the drama of changing your gears in the old-fashioned manner.

However, once you get a chance to drive a 991 GT3, all of this goes away. The car is so, well, perfect that you still feel involved in the driving experience. Plus, on the track it is even more potent than the previous 997 variant.

Porsche appears to be hoping that lightning will strike again and that they can win purists over with their race car for the street, the new 911 GT3 RS. One problem that the German performance carmaker has is beating itself. After all, the 911 is the car that all other sports cars are measured by. They then need to have the new 991 GT3 RS be even better than the 997 GT3 RS — which is no easy task.

The outgoing model was a special car. For the swan song of that GT3 RS, Porsche pulled all the stops, which included placing a 4.0-liter flat-six engine in the rear. For a performance car purist, it is heaven on wheels.

So, for the new GT3 RS, Porsche is having to think outside the box to make it even better. From leaked information we can be pretty confident that the new RS will have rear-wheel steering, only be available with a PDK transmission and will have electronic steering (no real surprises with this).

These will all be tuned versions of what the standard 991 GT3 has to offer. So, it will corner better, offer a bit more steering feel (and they did wonders with the normal GT3 setup), and the PDK dual-clutch transmission will be tuned for even quicker shifts.

All of this is a change from past GT3 RS's, but the next change may truly be a jump from the tried-and-true formula of past 911 GT3 RSs. Based on leaked photos, the new RS may have a turbocharged engine. This belief is largely due to the air-intakes on the rear fenders on leaked images of a 991 GT3 RS model.

If this information is true, then the 991 GT3 RS will be the first GT3 to wear a turbocharger. Up until now the turbocharged, higher-performance variant has been the GT2. This would then be a major departure for the high-performance 911 lineup.

Of course, Porsche may need to add turbocharging to increase the power output to help keep up with other manufacturers. Other high-end carmakers are building cars with high horsepower figures.

For example, the new McLaren 650S puts out 650 horsepower, and even the Dodge Challenger SRT Hellcat offers 707 horsepower. The Porsche 911 GT3 RS does offer a harder edge, higher-quality materials and better build quality than the Challenger, which makes the higher price well justified.

However, while the 650S is in a different price market, the GT3 RS would be around the same performance range, and a twin-turbocharger setup would give it a shot to gun for cars that cost much more in the performance area — something that Porsche has done many times in the past.

We will all be waiting for the official reveal of the new Porsche 911 GT3 RS, but we already know it will be the fastest GT3 RS yet.