I have a '00 s2k and I hate the plastic rear window, however I learned a trick from a friend's dad. When the window gets cloudy (it inevitably does) use turtle wax on it just as you would on the paint. Wax it on the inside as well as the outside and you get back a ton of visibility otherwise lost. My friend's dad used to do this on his snap on windows for a boat and I've done it on a bmw convert as well as my s2k and it really works! Try it and let me know if it worked for you too.

 

There are better ways to clear up your plastic window and keep it clear. This has been discussed at length. "Search" for "plexus", "maguiar's plastic polish", "static cling window tint" and "Muz mat" and you'll find lots on this subject.

 

I have no more problems with my 00 Plasic window. I sold it to Vash and bought a glass softtop. Problem solved.

 

also check out our library:
https://www.s2ki.com/article/articleview/49/1/29/