Copied from another forum ...

It seems that the Cayenne Petrol (Base, S, GTS, Turbo and Turbo S) is more different than we think compared to a Cayenne Diesel and Hybrid.

The driveline differential for a Non Diesel Cayenne is apparently different from a Diesel Cayenne. Which one is better?

Here's how Porsche describes them:

For Cayenne/S, GTS, Turbo/S:
Porsche Traction Management (PTM): active all-wheel drive with electronic controlled, map-controlled multi-plate clutch, automatic limited-slip differential (ABD) and traction-slip control (ASR)

For Cayenne Diesel and Hybrid:
Porsche Traction Management (PTM): permanent all-wheel drive with self-locking center differential, variable rear torque split

Link below talks about driveline differential technologies.

http://www.audiworld.com/news/11/quattro-tech/ Questions for technical gear heads :

1. Simple question: For those with a Catenne V6, Cayenne S, GTS, Turbo/S, can you lock your center and rear differential via the control ****?

2. Complex question: Which driveline differential technology is better, the Diesel or Petrol? The self-locking center differential technology of the Diesel appears to be old technology from my (non expert) research.

3. Super complex question: is the presence of a self locking center diff (in the case of the Diesel) a core reason why PDCC is not offered on a Diesel vs a Non-Diesel? You can get PDCC only with non-diesel Cayenne's.

Would appreciate your help and comments on the two differential technologies.

 

V6, Cayenne S, GTS, Turbo/S does not come standard with a rear differential. If you want the rear differential you must take PTV option.