Well I took in all considerations about plastic cleaner for the rear window.  I used Plexus and I will not regret buying it.  If you look at the first picture of my Boxster you will notice a yellow tint and line running throught the middle where it bends at.  Now after I used Plexus it took some of the yellow away but it made the yellow line disappear.  I do not know how it did it but for anyone looking for a rear window cleaner but Plexus.
		
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				-99' Zenith Blue 5-spd...didn't agree with a center divider on the freeway
-01' S Orient Red Metallic 6-spd...money pit...sold to buy a house 
