My issue is not with the drains, is all the broken pieces inside the kept the sunroofs
Partially open. But is a socal car, so is super dry and really rust free.

 

I get your point. Frustrating when they leak or don't work. But for cruising, that rear sunroof is the most effective thing at sucking out the heat. I use mine a lot. If I were travelling across the empty quarter of Arabia, or center of Australia, I'd definitely want that rear sunroof...lol (and a good cell phone/jumper cables/and tool truck tagging behind me ...lol)