1974 Porsche 911 911 Carrera 2.7l on 2040-cars

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2015 Porsche Cayenne S

Oh, Porsche.
Just as the dust settles over the 911 GT3's no manual gearbox kerfuffle, the Germans have gone and yanked the yummy naturally aspirated 4.8-liter V8 from the Cayenne S and replaced it with a twin-turbo 3.6-liter V6. Is nothing sacred in Porscheland?
Perhaps not... but that's not necessarily a bad thing. After all, Porsche famously once said they'd never build a diesel, but when they did, it was actually rather stellar.

Porsche finally moving ahead with flat four engine

When Porsche released the first Boxster in 1996 and the first Cayman in 2005, the idea was to create an entry-level model for the German automaker's sports car range. The latest iterations of both closely related models, however, have begun to encroach dangerously on the 911's territory, particularly in their newest GTS specifications. That could be about to change, however, with the introduction of a four-cylinder engine for the compact mid-engined coupe and roadster.
According to Automotive News, Porsche is finally preparing to launch a new boxer four engine in the Boxster and Cayman, following years of speculation. The engine would be based on the same architecture as the company's famous flat six, but with two fewer cylinders to cut weight. Don't expect it to cut much in the way of performance, however: Porsche chief Matthias Muller indicates that the new engine could produce as much as 395 horsepower - significantly more than even the 340hp flat six in the Cayman GTS, suggesting that the engine could even find its way into the 911 as well.
It's no more clear which markets would get the four-cylinder engine, either. But wherever it is offered and in whichever form, it wouldn't be the first time we'd see a Porsche with a four-pot engine. Not by a long shot. Both the classic 912 and 356 were powered by boxer fours, as was the 914 - not to mention the 718 pictured above and the iconic 550 Spyder. The front-engined 924, 944 and 968 packed inline-four engines, but the last of those were discontinued in the 1990s. The prospect of a four-cylinder Boxster/Cayman has been rumored for many years now, most recently joined by the possibility of a four-pot Macan as well.

Porsche planning Cayman GT4 racer

To say that Porsche is big in racing is like saying that Warren Buffett dabbles in mergers and acquisitions. But while it fields the 919 Hybrid at Le Mans and in the FIA World Endurance Championship, the bulk of its racing activities are undertaken by private teams that buy customer racecars from the factory. Those in turn are largely based on the 911, but the latest intel from the motor racing world indicates that Zuffenhausen is planning a more accessible customer race car.
The new, more affordable competition car is to be based on the Cayman and built to GT4 specifications, slotting in below the 911-based GT3 Cup, GT3 R and RSR. Autosport reports that Porsche has already developed a prototype and will shortly commence testing. Details are scarce at the moment, but the Cayman GT4 would seem to compete against the likes of the Aston Martin Vantage N24, Nissan 370Z Nismo GT4 and Maserati GranTurismo MC. It will also likely help Porsche foster enthusiasm for a potential road version that's already been spotted undergoing testing. Previous GT4 racing conversions of the Cayman, like the one pictured above, were carried out by third-party racing constructors not recognized by the factory.
Porsche may not be the only one showing interest in the category, however. BMW is said to similarly be considering a GT4-spec version of its M235i Racing model to compete in the same class, taking the place of the defunct M3 GT4 as the Bavarian marque's entry-level customer racing car.