FWIW when the X5 first came out the reviews all talked about the harsh choppy ride with the sport package,I think the ride is just fine.You'll have to drive one and see how you feel,don't be scared off by others. Perceptions vary.
Don't Forget to Have Fun! 325Cic Topaz,Sand;Sport,Premium. X5 3.0 Topaz,Sand;Sport,Premium,Xenon,Nav,HK,PDC.