Automatik question

[rsyed]

I have 2 questions to the automatic tranny of hte x6 for a diesel:

1) bmw claim to have put the sport automatic in the x6: if so, why is there no sports button to trigger all the sport automatic functions such as quicker gear changes, direct steering etc?
2) how does the x6 automatic compare with the x5? just as good? better? does it shift as fast/slow?
3) when you accelerate from 0 to 30-40 mph, does the car just rev high and hold its rev whilst accelerating or does the rev increase with the speed?

thanks for your help...