This am, I took a solo drive on my 2 months old x5 44 SP and wound the thing up to 100. While it got there kinda fast, it was definitely bumpier and the steering's lighter than what I accustomed to which is my '98 540ia SP. On the 540ia, I would be at 120-130 in no time and be pretty stable at that speed. The 540ia's steering tracks better at that speed than the x5 which in conjunction with the relatively light freeway traffic didn't give me the confidence I needed to go faster still. I guess I'm asking too much from the Sport part of SAV...