My 11 X5 w/ adaptive drive and 336's was at the dealer for 60+ days(12 is waiting to be delivered) and i had the luxury of driving multiple loaners from the dealer. The last one was a 11X5 50 sport with 214's (no adaptive drive) which we had for about 2 weeks. The dealer gave me my 11 back to drive while for 2 weeks until the new one came in and the only thing i can say is huge difference. Granted I have the air suspension but the two cars handled differently. Without the sport button, the loaner had much more body roll than mine did and with the adaptive drive on it was no contest.

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2012 X5 50i ZAP(2VA, 336, 465), ZTP, ZPP, ZPS(6VC), ZCW, ZRC, 322, 4UB, 4NC, 610
2011 ///M3 Silverstone II
2011 X5 50i(lemon)
-- SOLD --
08 550 Msport
07 X5 4.8I sport
04 545i sport
02 4.4i sport
01 540I M/sport
00 SL500
97 SL500