Out on the open road the new 911 is sensationally quick, with a wide performance spread - something that shows up particularly when you call up a tall gear and rely on the prodigious torque to briskly haul you along.
A good deal of the engagement comes through the extraordinarily linear delivery. While it is unable to serve up quite the same aural intensity of a naturally aspirated unit up high, the turbocharged engine rapidly builds to a 7500rpm climax with a blast of exhaust blare.
As well as being the first model to adopt the new turbocharged engine, the Carrera S also benefits from changes made to its optional PDK seven-speed dual-clutch automatic gearbox. With a new dual-mass flywheel to help dampen vibration, revised ratios and new software mapping, it now shifts with greater urgency and smoothness, both in automatic and manual modes.
The most significant development brought to the optional gearbox, though, is the change in direction of the gear selection via the lever. As with the unit used by the 911 GT3, you now pull back to select a higher gear and push forward to change down, bringing the Carrera S in to line with the system found on Porsche’s race cars. Alternatively, you can shift via the steering wheel mounted paddles.
The improvement in shift quality is most apparent on part throttle loads at lower speeds, where the updated gearbox now engages taller ratios without the customary jerkiness of the old model. There’s also a perceptible improvement in the overall speed of the shifts performed under full load at higher revs, leading to enhanced standing-start acceleration.
Although the new Carrera S tips the scales 45kg above the old model, at 1460kg with the optional dual-clutch ’box, Porsche claims the car is 0.2sec faster than its predecessor from 0-62mph, with a time of just 3.9sec. Top speed is also extended by 2mph to a new maximum of 190mph.
The lift in performance is accompanied by a significant improvement in fuel economy. Porsche claims combined cycle consumption of 36.7mpg for the new 911 Carrera S with the PDK gearbox – a boost of 4.2mpg. Emissions of CO2 have also fallen from an earlier 205g/km to a very impressive 174g/km.
Porsche has also succeeded in heightening the 911 Carrera’s already invigorating driving traits. In a move that serves to extend its dynamic envelope, the Carrera S now receives Porsche Active Suspension Management (PASM) as standard. The car also sits 10mm lower than its predecessor, with an optional sports suspension, as fitted to our test car, providing an additional 10mm lowering in ride height.
The steering is superb, delivering added feel and engaging weighting away from the centre point. It is also better tied down than before, with flatter and more progressive body movement during cornering. Braking performance is tremendous, aided by superb pedal feel. As a measure of the effectiveness of the chassis tweaks, Porsche claims the new model can lap the Nürburgring circuit some 10 seconds faster than its predecessor, in 7min 30sec. We’ll need more seat time to fully understand the new set-up, but for now it receives a hearty thumbs-up. The 911 Carrera S is now also compliant enough to allow it to deal with most surfaces without ever feeling uncompromising. It’s still resolutely firm, but it now rides with greater aplomb, both at lower speeds around town and out on the open road.
Another option is four-wheel steering, although it was not fitted to our test car. It provides 2deg of counter steer on the rear wheels at speeds below 31mph and 3deg of parallel steering at speeds above 31mph, giving the new 911 a tighter turning circle in town and the promise of even greater agility at speed.