New 992 GT3 RS “Around 500hp is the sweet spot,” said Andreas Preuninger, director of GT Road Cars, Porsche. “Any more and you need more of everything, such as bigger brakes, and that all adds weight.” The GT3 RS has 525hp, just 15 more than the GT3 which, says the GT boss, is enough. There’s never been any doubt the GT3 RS would come, but now it’s here we can confirm the details and quash the rumours. The engine remains a 4.0-litre flat six. All the talk of a larger capacity, or even turbo or hybrid-assisted GT3 RS was just that: talk. The power bump over the GT3 might be marginal, but Andreas claims it’s how the GT3 RS produces its power that’s significant.
The 4.0-litre’s 525hp is developed at…