For some pages you need to make sure the proper model is selected. I normally browse the spaghetticoder site with an E64 cab as my model. In this case (e64) the sunroof links are all greyed-out. You must select E63 to see sunroof links.
Straight lines are for fast cars...turns are for fast drivers
'04 M3 - track
'06 650i Cab - daily driver
'02 Highlander - kid hauler
'01 330Ci - winter beater