Was make the headlight lens out of glass instead of plastic like all other manufacturers. Any car with plastic covers that are several years old are yellow. I came across a '93 or newer Supra today, and I swear the lenses were so yellowed that I don't see how any illuminatiuon makes it to the road. By the way, I've used those lens restorers on a couple other cars, and while it helped a little, it didn't restore anywhere near to new like the claim was.
Follow Ups
One of smartest things Nissan did for us....... - ZXER19:47:39 11/16/09