well, when I came home with the W210 a while back now, the headlights were absolutely killing me, so I went on a hunt...
and this is what I came up with...
people have posted MANY different solutions involving sanding, etc...
you apply via an applicator pad, rub around for a bit as you watch it disappear, and wipe away with a micro fiber...
all I'm saying is...
its epic, its cheap, less labor, and it works...
turtle wax ice interior cleaner
does this!

here's a vid of me & the subaru last week, sorry for the cellphone quality, but I had to go, and it was the quickest means of showing,....
