It is rumored that of the end of the naturally-aspirated engines in the hardcore 911 GT3 and GT3 RS model is near and the purists' fears of the car going down the turbocharged route are about to become a reality.

According to Autocar, a source that is close to Porsche Motorsport has reported that the next 911 GT3 will be using a twin-turbo engine instead of the current 4.0-litre flat-six unit. The new engine is likely going to be heavily revised variant of the twin-turbo 3.8-litre engine found in the current 911 Turbo.

The next 911 GT3 is expected to produce around 513bhp, a slight bump from the current car's 493bhp. With the torque figures likely to jump quite a bit through the rev range, we wonder how the change in engine characteristic will affect the whole GT3 experience...