Originally Posted by devo
Don't believe the DSG rumors. However, your friend's Gallardo is nothing like BMW's SMG; it's far superior! DSG is basically Porsche designed and utilized by Audi, which of course, is offered on the Lamborginis.
DSG is a refined dual clutch tranny, whereas BMW offers their version of the same theme; albiet with a single clutch. Both, of course, are sans clutch pedal. DSG allows the subsequent gear to be "pre-selected" or "engaged", thereby reducing much of the gear change before you actually make it. (I.E. If you are accelerating the next higher gear is selected for the anticipated shift and if you are decelerating the opposite occurs.) The current Ferrari (430) and contemporary Lambos use it, as will Porsche (beginning with the 2008 997/911) in the very near future. None of the exotic car manufacturers are using SMG technology.
Each tranny is still a manual gearbox, but the clutching is done with the system's electronics/hydraulics. Neither transmission has a torque convertor; which robs some horsepower.
I'm confident that my statements will offend some BMW fans, but it's how I feel based on what I've experienced and read about the two. I love M3's but wish BMW would replace SMG with DSG or similar tech to DSG. I really doubt that this will happen anytime soon, but I can still hope for it. If anything less than a DSG type tranny is offered, I will pick a traditional stick over SMG any day; and some purist will take the stick over any tech that takes from the experience of driving. Unless full boogie, a stick is far more fun, imo.
The DSG is a nice pseudo replacement for an automatic transmission but not suited for spirited driving and certainly not on a track. Do some searches......
- You cannot skip gears downshifting - i.e. 5 to 3rd, 6th to 3rd - this makes it useless around a track
- Also, people complain that it kicks down regardless if it is in auto / manual mode when you go part throttle - no control
If BMW does a DSG type of system, I suspect they would need to fix these 2 issues....