I just bought a 2006 Mazda5 with very low miles. I quickly discovered however that there are two cracks in the tailgate "body" just above the hinge locations for the tailgate. They are starting from the edge by the end of the roof where the body (or spoiler?) bumps out to accomodate the hinges below. They both are toward the inside of the "bump-out". The one on the left side is about 7 inches long. The vehicle is out of warranty. I have seen discussion of this issue in two other forums from a couple of years ago. Mazda USA doesn't have any TSB's out on this, seems to not have any info. when I called their customer service number. Early European models seemed to have this problem along with Canadian models and some US vehicles from what I gathered from the other forums. I want to know how many American 2006's (and beyond) have this problem? Does anyone know what the fix is? The tailgate is one piece and to replace it per two bodyshops I have taken it to will be about $2500 to $3000 !! They don't think a "repair" will last. Mazda seems to be playing ignorant of this problem. What do other owners know about this?