Door glass is clear. It is my understanding that all fastbacks got tinted glass and a standard mustang could option tinted all around or there was a front glass only ck off too. Though this would be an exception to what SA specified for their cars it seems reasonable that some (100 in 20,000 maybe) tinted front windshields got on the assy line. Ford was not in the business of giving away upgrades nor was Shelby looking to buy any non performance extras. In Fords case, time was money and since no one would complain or even probably notice, Fords quality control efforts went elsewhere and the line kept moving. I think the front tinted add was only like $10 retail. Since it matches the other date coded glass I think i will replace it with tinted.If it wasn't scratched I would leave it alone. But to imply my car could not have come off the assy line with a tinted glass is to say no mistakes were made at FoMoCo.