Sunroof - Moonroof

last night i was remembering how when i was in the process of obtaining my E30, i told my grandfather how it had a moonroof to which he replied, ehh, its going to leak. i have never had problems with my bimmer's moonroof leaking, but i remember my dad had a cutlass with a sunroof that leaked terribly.

I was just wondering if any bimmer owners out there have any had there roofs leak. i suspect that no one has since bimmers are a great piece of german engineering!

Thanks:)