When did 240z's switch from clear glass to tinted glass? #237 and #331 both have all clear glass all around (doors, quarter windows, and hatch - with no defrost in hatch). Neither have the original windshield, so I don't know about that. My parts car, #882, is a 1/70 production car and it has tinted glass in the windshield, drivers door, both quarter windows, and the hatch - with the vert defrost lines. However, the passenger door glass is clear. The quarter windows and windshield didn't appear to have been replaced. That is they look to have the original seals, etc. The only info I found when searching was that the defrosters were supposed to have been introduced with car #1456, but #882 looks to have the original wiring in the harness for the defroster (dated 1/70), so I am not sure if hatch with defroster glass was switched out by the dealer at some point. -Mike