I have it on my Audi TT - it is the DSG system which Porsche are going to adopt. If you like paddle shifting on your BMW, wait until you try the DSG - it's absolutely fantastic. The only downside I would say is the fact that it doesn't really feel like driving - more like a Playstation game if I'm honest. So even though I love it, I'm looking forward to getting back to a manual / stick shift when my 997 arrives.