I have put 47,000 miles on the 325i since I bought it July 5, 2001.
I have put 9,500 miles on the NSX since I bought it May 3, 2003.
I average at least 40 miles per (week) day in the 325i (commute is 36 RT).
I have averaged around 55 miles per day on the NSX, primarily due to the fact that I drive it as much as I can, and often take it on trips during the weekend or (occasionally) work week.