In a 911, engine power is not the only priority. There is always the question of how this power can be effectively and consistently delivered to the road. One solution to this is all-wheel drive. An even better one is intelligent Porsche Traction Management (PTM), comprising permanent all-wheel drive with an electronically controlled multi-plate clutch, an automatic brake differential (ABD) and anti-slip regulation (ASR).

The force between the front and rear axle is distributed actively by an electronically controlled multi-plate clutch.

In comparison with a viscous multi-plate clutch, where clutch regulation is not initiated until there is a difference in speed between the front and rear axles, the electronically controlled multi-plate clutch responds much more rapidly. Through continuous monitoring of the driving conditions, the electronics are able to respond to a variety of situations. Sensors check, among other variables, the rotation speeds of all four wheels, the longitudinal and lateral acceleration of the vehicle, and the steering angle. By evaluating the sensor data, the system can quickly adjust the distribution of drive force to the front axle in order to achieve optimum balance. If the rear wheels threaten to spin under acceleration, a greater proportion of drive force is sent forwards by a more powerful engagement of the multi-plate clutch. At the same time, ASR prevents the rear wheels from spinning. When cornering, the front wheels only ever receive as much drive force as is necessary to prevent lateral instability. On uneven surfaces, the rear differential fitted as standard to all-wheel drive models, in combination with ABD, also improves traction.

In this way, PTM, in conjunction with Porsche Stability Management, ensures that the perfect distribution of drive is achieved every time.

PTM really comes into its own in the wet or in ice and snow. In these conditions, the car’s acceleration capability is simply breathtaking.

The result: a high level of safety and outstanding performance. Put to use in the most intelligent way.

Fuel consumption* of the 911 models: Urban in l/100 km (mpg): 18.9-11.2 (25.2); Extra urban in l/100 km (mpg): 8.9-6.5 (43.5); Combined in l/100 km (mpg): 12.4-8.2 (34.4); Emissions in g/km: 289-194.

* The latest Porsche models are designed to operate on fuels with an ethanol content of up to 10%. Data determined for standard specification and in the NEDC (New European Driving Cycle) in accordance with the Euro 5 (715/2007/EC and 692/2008/EC) measurement method. The figures do not refer to an individual vehicle nor do they constitute part of the offer. They are intended solely as a means of comparing different types of vehicle. You can obtain further information about individual vehicles from your Porsche Centre.

Consumption figures were obtained on the basis of standard equipment. Special equipment may affect consumption and performance.