Originally Posted by ZX9RBART

I just about gaurantee your windows are factory tinted, they have done this since the 80s on cars that came with AC. It's not very obvious but done at like 5% to help the performance of the ac. The best way to tell the difference is to get a piece of glass like from a broken house window or something and hold it next to it. Or just call a reputable tint place and they will confirm.