I have an 02 BMW X5 4.4 sport.....im curious does the X5 operate and have a higher end speed in Sport mode or tiptronic mode?? Just wondering....by the way i raced an 2004 FX45 lastnight i know its a little immature and maybe a bit dangerous but i had to...it was a close race up until we reached the 170-180km/h speeds then my X5 started pulling away so basically i won which i figured would happen. Anyway any help on my question ??