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    <div class="caption">Model shown: 911 Carrera 4 Cabriolet</div>
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      <p>It is possible to have a lot of power and yet not be able to move anything. Only by using your power intelligently will you truly progress – and with consummate ease. </p>
      <p>Enhanced Porsche Traction Management (PTM) is standard on all 911 Carrera all-wheel-drive models. It is an active all-wheel-drive system with an electronically variable map-controlled multi-plate clutch, automatic brake differential (ABD) and anti-slip regulation (ASR). </p>
      <p>Drive power is distributed between the permanently driven rear axle and the front axle by means of the electronically variable multi-plate clutch. </p>
      <p>The status of the vehicle is continuously monitored so that it is possible to respond to different driving situations. Sensors are used to collect a range of data, including the rotational speed of all four wheels, the lateral and longitudinal acceleration of the car and the current steering angle. </p>
      <p>If, for example, the rear wheels begin to lose traction under acceleration, a greater proportion of the drive power is automatically transmitted to the front axle by a more positive engagement of the multi-plate clutch. In addition, ASR prevents wheel spin by adapting the engine’s power output. During cornering, the optimal level of drive power is distributed to the front wheels to ensure excellent lateral stability. </p>
      <p>In conjunction with Porsche Stability Management (PSM), PTM helps to ensure the perfect distribution of drive power for optimum traction in most road scenarios, whether on long straights, through tight corners, or on surfaces with different friction coefficients.</p>
      <p class="footnote">Fuel consumption* of the 911 models: Urban in l/100 km: 18.9-11.2; Extra urban in l/100 km: 8.9-6.5; Combined in l/100 km: 12.4-8.2; Emissions in g/km: 289-194.</p>
      <p class="footnote">* These data were obtained using the Euro 5 measurement method (715/2007/EC and 692/2008/EC) in the NEDC (New European Driving Cycle) with standard equipment. The information does not refer to an individual vehicle and is not part of the offer, but is simply provided so that comparisons can be made between different types of vehicle. Further, up to date information on the individual vehicles can be obtained from your Porsche Centre.<br /><br />Consumption figures were obtained on the basis of standard equipment. Special equipment may affect consumption and performance.</p>
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