Hi Alfisti
I would like to share my experience on the subject and bring it to your attention cars fitted with electric sunroofs causing interior water damage. I have attached link to a post on this forum which has information that may be invaluable in the long term.
http://www.alfaclubvic.org.au/forum/index.php?topic=16972.msg98118;topicseen#msg98118
cheers
bonno