Thats the thing when i sprayed it with my glass cleaner it looked almost invisible.. mine is definately a scuff( the way i would describe a scuff would be if you grabbed your phone put it on the floor and dragged it along, and you'd be left with kind of powdery scuff like mark)
I can deal with it for now but it enrages me everytime i look out the passenger side window for cars etc.. but it is something i would definatley want to replace before selling the car if i ever do.