Spy photographers have snapped for the first time what is believed to be the 2017 Porsche 911 GT3 RS 4.2. What is that you may ask? Well apparently its a hardcore version of the already hardcore 911 GT3 RS as it features an aggressive front bumper with massive air intakes. The mean styling continues further back as we can see front fender vents and lightweight center-locking wheels. Although the model is still in early stages of development, it seems it will have a new rear bumper and rear diffuser from the new 911 R. As you would expect a dual exhaust system at the back is present with a massive rear wing. As the name says, this should be powered by a 4.2-litre six-cylinder engine pushing more than 500 horsepower. Please remember this is all speculation at the moment but in our opinion, it is pretty accurate.