I recently purchased a 1999 Z3 from my local dealer.  Since driving it to work and perking it all day in the rain, I came out to find that my roof isleaking at both corners of the windshield, and the back panel in the  trunk was saturated also.  I think the rear window may be leaking somewhere also as the back section where the roof collapses into was very damp also.
  Doeas anyone know if this is a common ailment of these cars? and if so, are there any fixes I can do?  (drain tubes?  I couldn't find any) Notorious spots on the weather stripping that get compressed? Seams that separate? I never had a leaky trunk before!?
  TIA, Howie and Maria  (her car actually)

hello Iggy3rd, do the shower test and identify the source of the leak and do the same on the trunk.