My commute to work is 30 miles each way on a mostly 3 lane highway. Although Arizona is notorius for slow drivers in the left lane, my avg MPH readouts range around 87-89 MPH from the on-ramp to the off-ramp which is pretty freakin fast. Unfortunately, BMW allows the avg MPH to decrease when stopped at a light. I've always thought that it should only average speeds when in motion.
I know that I averaged about 80-83 in my old Lexus IS300, and now I almost always find myself ~90-110 in my ZHP (until traffic slows me down!). I know I need to be more careful and slow down, but it's so much fun to HIT IT every time!
Cheers!