I have been told categorically the new 991 Turbo/Turbo 'S' have PTV. [8|]
This system came originally from F1 and increases dynamic performance and stability by varying the distribution of torque to the rear wheels and includes a mechanically locking rear differential.
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 significantly increases agility and steering precision. At high speeds and when accelerating out of corners, the rear differential lock ensures greater driving stability on a range of surface conditions, including the wet and snow. [
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The results are stability, easier handling and better traction as well as greater agility.
But 4 wheel steering has been developed as an alternative system, hasn't it? There's surely no need for both systems and nowhere in the technical bumpf currently coming through , is there any reference to PTV. [
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We been given erroneous information regarding manual transmission being available when it isn.t. As Centres are asking for £10K reservation deposits, do they yet know what they're actually selling? Do they yet have a vehicle allocation or delivery dates?
There seems to be an expectation of a rather large "leap of faith" from potential customers. [
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Regards,
Clive.
This system came originally from F1 and increases dynamic performance and stability by varying the distribution of torque to the rear wheels and includes a mechanically locking rear differential.
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 significantly increases agility and steering precision. At high speeds and when accelerating out of corners, the rear differential lock ensures greater driving stability on a range of surface conditions, including the wet and snow. [
The results are stability, easier handling and better traction as well as greater agility.
But 4 wheel steering has been developed as an alternative system, hasn't it? There's surely no need for both systems and nowhere in the technical bumpf currently coming through , is there any reference to PTV. [
We been given erroneous information regarding manual transmission being available when it isn.t. As Centres are asking for £10K reservation deposits, do they yet know what they're actually selling? Do they yet have a vehicle allocation or delivery dates?
There seems to be an expectation of a rather large "leap of faith" from potential customers. [
Regards,
Clive.