Porsche has announced the latest generation of its fabled 911 Carrera, with changes that will have 911 purists up in arms. While it still looks definitively similar to its predecessors, the refreshed 911 now features an all new 3.0-litre flat-six with two turbochargers strapped onto it, in place of the old 3.4 and 3.8-litre units.

Power is bumped up by 20bhp for both the Carrera (365bhp) and Carrera S (414bhp) models. 0-100km/h timings have been cut by 0.2 seconds for both models, and the Carrera now manages a 295km/h top speed whilst the Carrera S goes all the way to 308km/h. According to Porsche, depending on the model, the new 911 is now almost 12 percent more efficient as well.

For the first time, the new Porsche Active Suspension Management (PASM) chassis is standard on all Carrera models, improving stability during cornering, while enhancing driving comfort thanks to the new dampers. Active rear-axle steering (featured on the 911 Turbo, 911 GT3 and 918 Spyder) is also now available as an option on the Carrera S, improving driving stability when changing lanes and high speeds and reducing the car's turning radius by 0.5 metres.

The new 911 Carrera also features a 'mode switch' on the steering wheel, with four driving settings: Normal, Sport, Sport Plus and Individual. In addition, there is also a 'Sport Response Button' that when pressed, pre-conditions the drivetrain for 20 seconds of maximum acceleration. Presumably, overtaking on highways will now be even easier.

Unsurprisingly, the outside of the new 911 Carrera looks pretty much the same as before, with the only changes being new four-point LED lights in the head lights, a redesigned engine lid with vertical louvres, and two central exhaust pipes with the optional sports exhaust package. On the inside, there is a new generation 7.0-inch touchscreen operating the Porsche Communication Management System, which offers smartphone integration such as Apple's CarPlay. 

Of course, no Porsche is complete without an extensive options list that includes automatic speed control, Adaptive Cruise Control, Lane Change Assist, among a myriad of other performance and styling options.

The new Porsche 911 Carrera and Carrera S will make their debut at this Month's Frankfurt Motor Show, and deliveries will begin in December.