Jeff (in SF) said:
carlos fromspain said:

If its like the active differential of Lancer then its like a mechanical LSD but with the ability to vary the lock up electronically governed by software that monitors its needs by sensors (like PSM does). How it will act like depends on how they design it (more intrusive, more sporty, etc) the Lacer Evo's works great but the Haldex on the Audi TT/A3 Quattro and Golf 4motion sucks.
Since the software can vary the torque split form front vs rear "when it wants to", not only when there is actual slippage like a normal mechanical LSD. So it can do so in advance unlike mechanical differentials, for example under hard acceleration it can send the torque to the rear wheels for greater traction "before" there is any traction loss so it can be very effective. Ironically, the first ones to use a system of this type was Porsche themselves with the 959's "PSK" AWD system.

Funny, the 9997TT will reincorporate old engeneering wonders from Porsche's past, the dual-clucth (ala Audi/VW DSG tranny) which was actually first invented by Porsche for the 956/962 race cars and was called PDK, and now maybe a new version of the electronic AWD invented by Porsche first, the PSK

PDK, PSK, adaptive suspensions, 2nd gen ceramic brakes, more power, etc. the 997TT may be an interesting surprise its will surely be the most "effective" sportcar of the bunch

I've been wondering why Porsche hasn't used the same trickle-down technology that Ferrari has recently been putting in their cars. Porsche's 959 had the approximate equivalent of what the new Ferrari F430 now offers (varying traction programs for varying road surfaces/conditions) almost 20 years ago! Porsche has had experience with clutchless manuals for years gut hasn't yet put one in a road car - even the performance/track oriented models. Wonder why.........RC?

I feel that it would be another step further from their philosophy. Having the standard shift is becoming "old school" these days, dont you think? Every company is putting a tiptronic or sequential gearbox in place. I would always prefer manual over a tiptronic. Its just something about a manual tranny that puts you in "race mode".