One problem related to windshield has been reported for the 2004 Mazda RX8. The most recently reported issues are listed below.
Sun visor splits in middle when folded down on hot days and blocks windshield while driving. Sun visor is electrically wired and hangs from wire obscuring most of windshield on drivers side. Dealership has replaced sunvisor several times for same problem. On internet community many if not all other users report that the same thing has happened to them. . Read more...