Another possible definition of efficiency is a system that works only when it is needed, and then does so in a particularly effective way.

This was the guiding principle for our engineers in the development of the electromechanical power steering. Statistics show that a car drives in a straight line 90% of the time. Unlike conventional hydraulic pumps, the electric motor uses energy only when the steering wheel is actually turned. The absence of hydraulic fluid also makes the system more beneficial to the environment.

As far as the other 10% is concerned, we’re optimally prepared as the steering system is typically Porsche. It features a variable steering ratio and responds sensitively and directly at the same time as providing customary agility, a high level of comfort and precisely selected feedback from the road. Our definition of efficient.

Power steering Plus, the comfort-enhancing power-steering system, is available as an option for the 911 Carrera models. At high speeds, the steering is as firm extreme precision while steering comfort remains as high. At low speeds, the steering ratio of Power steering Plus adjusts for much easier maneuvering and parking.

Fitted as standard, the SPORT button enables you to select a suspension setup where the emphasis is on either comfort or sporty performance. At the push of a button, the electronic engine management system switches the engine mapping to offer an even sharper response and engine dynamics that are more direct.

In vehicles with Porsche Doppelkupplung (PDK), upshifts take place at higher engine speeds and downshifts happen sooner. In addition, coasting mode and the auto start/stop function are automatically deactivated. If fitted, the optional sports exhaust system is also activated automatically.

The Sport Chrono Package including dynamic engine mounts is available as an option. This integrated system provides simultaneous enhancement for the chassis, engine and transmission.

Included in the package are a performance display, a digital and an analog stopwatch and the SPORT PLUS button. An additional display in the steering wheel and instrument cluster indicates whether the SPORT buttons and Launch Control have been activated.

On activation of SPORT PLUS mode, Porsche Active Suspension Management (PASM) and, in the 911 Carrera S models, optional Porsche Dynamic Chassis Control (PDCC) switch to a harder damping

setting and offer more direct steering and, therefore, better road holding.

In SPORT PLUS mode, the trigger threshold for PSM is raised. Agility is perceptibly enhanced when braking for corners with PSM, allowing sportier braking and exit acceleration. For maximum dexterity, PSM can be set to standby while the car is still in SPORT PLUS mode. For safety, it is set to intervene automatically only when ABS assistance is required on both the front wheels.

In combination with PDK, the Sport Chrono Package has two additional functions for a sporty drive that borders on a motorsport experience. The first is ‘Launch Control’, which can be used on the track to achieve the best possible standing start – a racing start.

The second function is the motorsport-derived gearshift strategy’. Using this, Porsche Doppelkupplung (PDK) is geared up for extremely short shift times and optimum shift points for the maximum acceleration available. This combination of uncompromising and involving performance is ideal for the racetrack.

A key component of the Sport Chrono Package is the stopwatch mounted on the dashboard. In conjunction with the optional PCM, a special performance display enables you to view, store and evaluate lap times or other driving times. It shows the total driving time, lap distance, lap number and lap times recorded so far.

A feature of the Sport Chrono Package borrowed from motorsport is the dynamic engine mounts. These

exploit the laws of physics for your own driving pleasure.

You don’t have to take the 911 onto the racetrack. But you can, more so than ever, because dynamic engine mounts are now included as part of the Sport Chrono Package.

The electronically controlled system minimizes the oscillations and vibrations of the entire drive train, especially the engine, and combines the benefits of a hard or soft engine mounting arrangement.

A hard engine mounting delivers optimum dynamic performance because it offers the highest degree of handling precision possible. Soft engine mounts, on the other hand, minimize oscillations and vibrations. While comfort is improved on uneven road surfaces, this comes at the expense of dynamic performance.

Our engineers have solved this problem by enabling the engine mounts to adapt their stiffness and damping properties to changes in driving style and road surface conditions. This has been achieved by use of a fluid with magnetic properties in interaction with an electrically generated field. For the driver, the results are tangible. Handling is perceptibly more stable under load change conditions and in fast corners. Whenever a less assertive driving style is adopted, the dynamic engine mounts provide a higher level of comfort.

PTV in conjunction with the manual gearbox, or PTV Plus with Porsche Doppelkupplung (PDK), are available as options for the 911 Carrera models and standard in the 911 Carrera S models. Both systems actively enhance vehicle dynamics and stability. Operating in conjunction with a mechanical (PTV) or electronic (PTV Plus) rear differential lock, they work by braking the rear wheels as the situation demands.

As a function of steering angle and steering speed, accelerator pedal position, yaw rate and vehicle speed, PTV and PTV Plus are able to improve steering response and steering precision by specific braking of the right or left rear wheel.

To be more precise, this means that when the car is driven assertively into a corner, moderate

brake pressure is applied to the inside rear wheel. Consequently, a greater amount of drive force is distributed to the outside rear wheel, inducing an additional rotational pulse (yaw movement) around the vehicle’s vertical axis. This results in a direct and sporty steering action as the car enters the corner.

At low and medium vehicle speeds, PTV and PTV Plus significantly increase agility and steering precision. At high speeds and when accelerating out of corners, the rear differential lock ensures greater driving stability. With PTV, the differential lock is regulated mechanically; with PTV Plus, it is regulated electronically and the torque distribution is infinitely variable. Whichever system is fitted, it interacts with Porsche Stability Management (PSM) to improve driving stability on a range of surface conditions, including the wet and snow.

For the driver, this means remarkable stability, easier handling and outstanding traction as well as greater agility at every speed with precise steering and stable load transfer characteristics. What else? Unrivaled driving pleasure at every twist and turn.

PASM, the electronic damping control system, is standard in the 911 Carrera S models and available as an option for the 911 Carrera models. It actively and continuously regulates damping forces according to driving style and road conditions. In addition, the suspension is lowered by 0.39-inch (10mm).

PASM has two modes, which can be selected using a separate button on the center console: ‘Normal’, which is a blend of performance and comfort, and ‘Sport’ where the setup is much firmer.

Sensors record the body movements that accompany powerful acceleration, braking or uneven road surfaces. In the 911, the number of sensors has been increased for improved data acquisition and even more efficient control interventions. The PASM control unit evaluates the driving conditions

and modifies the damping force on each of the wheels in accordance with the selected mode.

In ‘Sport’ mode, the suspension is set to a harder damper rating. On uneven roads, PASM immediately switches to a softer rating, thereby improving contact between the wheels and the road. When the road surface improves, PASM automatically reverts to the original, harder rating. If ‘Normal’ mode is selected and the driver’s style becomes more assertive, PASM automatically switches to a harder rating. Damping firms up, and driving stability and road safety are increased.

The results are tangible: increased driving stability, improved comfort and enhanced performance.

The PASM sports suspension is available as an option for the 911 Carrera Coupe models in conjunction with 20-inch wheels and Porsche Torque Vectoring (PTV) or Porsche Torque Vectoring Plus (PTV Plus).

The ride height is 0.79 of an inch (20 mm) lower than with the standard 911 Carrera suspension, and 0.39 of an inch (10 mm) lower than the PASM suspension. The springs are harder and shorter, and the anti-roll bars on the front and rear axles are stiffer. The front spoiler lip has a more sporty geometry, the rear spoiler extends even further. These not only further reduce lift at the front axle, but also provide downforce at the rear axle for improved aerodynamics and even better

performance.

It’s easy, and even makes sense, to carry on in your usual way, but what happens if a sudden change of direction leaves you thrown off course? Then, it all comes down to personal strength.

A Porsche has a clear sense of purpose and is the embodiment of strength. It demonstrates this with sporty and precise handling and excellent road holding.

With the optional Porsche Dynamic Chassis Control (PDCC) for the S models of the 911 Carrera, these characteristics can be further accentuated: the vehicle holds the road even better and delivers even sportier performance.

PDCC is an active anti-roll system that suppresses lateral body movement during cornering

maneuvers.


In addition, it minimizes the lateral instability of the vehicle on uneven ground.

This effect is achieved with the aid of hydraulic stabilizing actuators in the form of cylinders designed to optimize camber. Lateral roll is counteracted by forces generated at each individual wheel, based on steering angle and lateral acceleration.

The results are improved dynamic performance and increased ride comfort at all speeds, as well as optimized turn-in and stable load transfer characteristics.

In simple terms, the tires and vehicle hold the road better and you can steer through corners faster and in a more relaxed manner.

PDCC sets standards for handling performance, ride comfort and driving pleasure. In the 911, your ‘usual’ way suddenly becomes the Porsche way.

The 911 Carrera models are equipped with 19-inch Carrera wheels as standard. These are lightweight alloys featuring a classic sporty design. Tire sizes are 235/40 ZR 19 and 285/35 ZR 19 at the front and rear, respectively. All-wheel-drive models are fitted with even wider 295/35 ZR 19 tires at the rear.

The S models are equipped with light-alloy 20-inch Carrera S wheels as standard. The visual effect is sporty and dynamic. The tires are slightly wider to cope with the increased power output of these models: 245/35 ZR 20 at the front, 295/30 ZR 20 at the rear. All-wheel-drive models have 305/30 ZR 20 tires at the rear.

The large tire size improves both ride comfort and track performance. Rolling resistance, dry braking distances and tire weight are all comparatively low, thereby helping to reduce fuel consumption.

A selection of 20-inch wheels is available in our range of options.

Tire Pressure Monitoring System (TPMS) is available as standard. This safety system sends warnings to the on-board computer’s display screen in the event of low tire pressure or a gradual or sudden loss of pressure. The individual pressures in all four tires can be displayed in the instrument

cluster.

The independent suspension at the front features a lightweight spring-strut axle with longitudinal and transverse links and cross members that have been refined for stiffness. Each front wheel is precisely located, ensuring excellent directional stability, superior handling and reduced pitching under braking, and the wide track optimizes turn-in.

The rear axle is equipped with a motorsport-derived multi-link suspension and chassis subframe. Refined axle kinematics for improved longitudinal damping reduce acceleration squat and increase comfort. Lightweight spring struts further enhance agility.

The high proportion of aluminum used in the construction of the axles reduces the weight of the vehicle and of the unsprung masses, helping to improve fuel economy, comfort and agility.

The 911 Carrera models are equipped as standard with Bi-Xenon headlights including a headlight cleaning system and dynamic range control. With dipped or main beam, the road ahead is illuminated more uniformly.

The LED front light units incorporate direction indicators, daytime running lights and position lights.

Automatic headlight activation is also included as standard. The moment it gets dark, the daytime running lights switch off and the dipped beam headlights switch on automatically.

Cutting edge LED technology is also used for the taillights, the high-level third brake light, the

licence plate illumination, the rear direction indicators, the rear fog light and – on all-wheel-drive models – the rear light strip. LEDs provide better illumination and respond more quickly to driver input. In the event of sudden braking, the adaptive LED brake lights begin to pulsate. If the vehicle is braked to a halt, the hazard warning lights will switch on automatically, alerting following traffic more quickly to a critical situation.

The lighting system features an automatic switch-off and the ‘Welcome Home’ function. It’s good to know what’s around the next corner or on the way to your front door.

The Porsche Dynamic Light System (PDLS) is available as an option.

Its dynamic cornering light function swivels the headlights towards the inside of a bend, based on steering angle and road speed, in order to illuminate more of the road at tight bends and turns. Put simply, the road ahead is illuminated the moment you enter a bend.

The system also offers speed-sensitive headlight range control. With adaptive light systems, it is possible for the maximum range of the dipped beams to be increased as a function of the speed of the vehicle. PDLS takes care of this automatically in two stages. Stage 1 is the basic position

for driving in city traffic, for example. Stage 2 is designed for driving at faster speeds, such as on the motorway. Above 80 mph, the range is adapted again.

Another feature of PDLS is the adverse weather function, activated whenever the rear fog light is switched on. It reduces the effect of reflection phenomena in poor visibility conditions to avoid the risk of the driver being dazzled.