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Old 12-19-2012, 11:55 AM
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Emission Emission is offline
Automotive Monomaniac
Location: North of Los Angeles, CA
Join Date: Dec 2001
Posts: 10,702
Mein Auto: Schnelle Autos
Originally Posted by UncleJ View Post
Henry the BMW system is different than the AV(P)G systems -- not to say its any worse or better just different. All the systems are the same in that they provide four wheel drive of course, and share other features as well. As far as the Cayenne/T-egg-Q7 diesels go, I believe that the diesel drive trains retain the prior system with the locker low range and weight penalty -- of course that adds off road capability for those insane enough to run the Rubicon with their new diesel Cayenne! However Mike would know the definitive answer -- having used one off road up in the far North.
They use different systems... of which I am no expert. I am going to assume that Porsche's "premium" system (not on Cayenne Diesel but on the S, GTS and Turbo) is more sophisticated and lighter than BMW's. However, its "basic" system (found on Cayenne Diesel) is inferior.

Keep in mind that tires and ground clearance, not the ultimate sophistication of the AWD system, make all the difference when the pavement ends.

Oh, look what Aston Martin put in my driveway yesterday...

- Mike
I am fortunate to have unique press cars delivered weekly, but I own:

'16 BMW X5 xDrive35i M Sport 8AT
'15 Volkswagen Golf TDI 6MT
'86 Porsche 911 Turbo 4MT

Gone, but never forgotten... my E70 X5 35d, E90 335i, E46 330i, E36 328i, E70 X5 3.0si, E53 X5 3.0i.
Read my work as Editor-in-Chief for Autoweb and Autobytel!

Last edited by Emission; 12-19-2012 at 11:58 AM.
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