So, ...
No sunroof leak and I guess the extra wind noise from it is normal. It's not objectionable. Plus, I installed the factory roof racks and the front bar is right behind the sunroof. Mayby it causes some turbulance.
Also, on those factory roof racks. Sheeesh, there kind of wimpy. Plastic end brackets on extruded aluminum crossbars of a very light guage. Each plastic end bracket is fastened to the roof with one 6mm bolt. Truely more for looks than function, IMO. I'm just used to my old Chevy Astro van's rack. You could stand on it.
Put a Drawtite class III trailer hitch on also.( 2" square reciever). Instructions said it was the same hitch for the Chevy Equinox. Anyway, it attaches with eight bolts, ... four 1/2" , four 10mm. A nice strong looking hitch and although the Saturn frame is lightweight, it ought to hold up for my needs. By the way, FYI... Saturn rates
their factory trailer hitch a class III, ( #3500 tow capacity), but the reciever is only a 1 1/4" square. That is not a class III rated size reciever. If you require a class III, buy the Drawtite aftermarket or equal.
Bad/hard part of putting on the hitch : Could'nt do it the way the instructions said. The little wire tool supplied to "fish" the two bolts into the hollow steel bumper frame tube would not do it's job. The bolts path through the hollow tube was obstructed by part of the styrofoam filler block behind the gray plastic bumper "skin". Had to entirely remove the bumper "skin", ( 12-16 plastic re-usable rivets and 4 6mm bolts.) Take off the styrofoam bumper filler, ( two rivets). At that point fishing in the bolts would have been possible, but it was just easier take the steel bumper tube off too, ( eight more bolts), and then put all the hitch bolts in place by hand.
Good/easy part of job, .... for hooking up the trailer lights, Saturn left a "service loop" in the wiring harness to easily tap into. It's located in car jack storage compartment.
MAN, I LIKE THAT RED CHILI PEPPER COLOR !

dave.