Wider rear arches and a horizontal light band that runs between the tail-lights will continue to distinguish the four-wheel-drive 911s from the rear-drive editions.
Most significant among the mechanical changes is the adoption of a new twin-turbocharged 3.0-litre horizontally opposed six-cylinder engine, as initially unveiled in the latest 911 Carrera and Carrera S.
The first in a series of modular turbocharged engines, it replaces the naturally aspirated 3.4-litre six-cylinder unit in the 911 Carrera 4 and Targa 4, delivering an added 20bhp and 45lb ft, with 365bhp now available at 6500rpm and 332lb ft on tap from 1700 through to 5000rpm.
In the 911 Carrera 4S and Targa 4S, the new engine supplants the older naturally aspirated 3.8-litre horizontally-opposed six-cylinder powerplant, offering a similar 20bhp and 45lb ft increase, with 414bhp and 369lb ft.
Gearbox choices remain the same as before, with a seven-speed manual offered alongside a seven-speed PDK dual-clutch unit with the choice between manual and automatic shift modes. Both gearboxes work in combination with an electro-hydraulic four-wheel drive system.
The increase in output provides the four-wheel-drive 911 Carrera 4 and Carrera 4S coupe with 0-62mph times of 4.1sec and 3.8sec respectively in combination with the optional seven-speed PDK gearbox. These times represent a respective 0.1sec improvement on the rear-drive Carrera and Carrera S, owing to superior off-the-line traction.
Top speed has also increased, with the Carrera 4S coupe now achieving a claimed 190mph.
Porsche claims its new twin-turbocharged engine is also up to 12% more economical than its normally aspirated predecessor. No figures have been quoted for the Carrera 4 or 4S coupe just yet although Porsche claims the Carrera 4 cabriolet and Carrera 4S cabriolet achieve claimed average combined fuel economy figures of 35.8mpg and 35.3mpg.
As with facelifted rear-wheel-drive 911 models, the various four-wheel-drive variants of the 2016-edition 911 all receive the Porsche Active Suspension Management (PASM) system as standard. As well as providing adaptive damping qualities, it also brings a 10mm reduction in ride height.
A new option on the 911 Carrera 4S is a four-wheel steer system, similar to that used by the 911 Turbo and GT3. Also available is a hydraulic lift function that can raise the ride height by 40mm within five seconds at the press of a button.
As well as providing tunable settings for the dampers and throttle mapping, the Sport Chrono package now includes a steering wheel-mounted driving mode switch that allows the driver to choose between Normal, Sport, Sport Plus and Individual driving modes.
On models running the optional Sport Chrono package and seven-speed PDK dual-clutch gearbox, an additional Sport Response button is fitted. When activated, it provides maximum acceleration for 20 seconds by selecting the optimum gear.
Inside, the four-wheel-drive 911 adopts the same upgrades made to rear-wheel-drive models. Included is a new generation of Porsche’s Communication Management (PCM) multimedia system. Its larger 7.0in touchscreen supports both Apple CarPlay and Android Auto connectivity, with satellite navigation coming as standard.
Pricing for four-wheel-drive 911 models starts at £81,398 for the Carrera 4 coupe. Other models include the £90,240 Carrera 4 cabriolet, £90,843 Carrera 4S coupe, £99,684 Carrera 4S cabriolet, £90,240 Targa 4 and £99,684 Targa 4S.
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