I had my 2011 Sonata tinted recently, I noticed when driving at night and looking through the rear view mirror, the rear windshield gives double vision of the headlights of the cars behind me. Each defroster line has a reflection of the headlight...so I see 2 "columns" of light for each car behind me. Does anyone have that night vision problem after tinting? I contacted my installer, and he said that's because the Sonata rear windshield is steeper than other car. And that even with the film removed, it'll still have double vision. I could not remember if it was really that way before the tinting.