My thrill with the X5 is the amazing acceleration it has like when entering a highway and you bring it up to 70 in secs.
Going 100 in or around a city is just plain stupid.
I doubt that 100 feels that much different in the X5 than 80!
Watch the youtube vid of the review from this guy driving a diesel X5 on the Autobahn cruising along around 135.
I wonder what sound an X5 makes when hitting a Deer at 135 mph who was strolling across the Autobahn or whatever types of wild animals are in the area