No interest in actually doing so, but i can seem to find the max ungoverned speed of the 1996 750il.
Anyone?
Thanks.

The maximum theoretical speed of the 750iL assuming stock tires and gearing is 217.9 @ 6kRPM and 254.2@7kRPM.

I created a page that shows the top speed in all gears for all E38's - it can be seen at http://www.iluvmyrx7.com/temp/bmw/topspeed.htm

I asked David at e38.org to host it if he adds it to his site in case I ever delete it off of my server.