My car is 10 months old and i've noticed the inside of the headlight lenses have a few water spots on them (I have xenons with DRL's). The headlights have misted up occasionally when i've driven in heavy rain which I think has caused the marks. I know headlights are not a sealed unit, they all have ventilation holes in them. Have any other facelift owners noticed the same? Do you think this would be a valid warranty claim?