XSeries-forum

[quote="SimplyRed"]

Ok, none of those VIN number sites work.

[...]
[/quote]

This one works. I've used it extensively during my search for a 40d.
http://www.bmwvin.com/x/index.php

That needs you to create an account......

BMW operate their own in the 'Owners' area, you just need to look at the maintain your car section and follow the links through.  If you select 'Options' then the build sheet comes back complete.

Richard