Meguiar's has a new plastic polish here's what I copied from off there website. $4.99 for a 10oz bottle.

This easy to use, rich gel formula quickly restores optical clarity to both rigid and flexible plastics. Cutting-edge advancements in Meguiar's exclusive Microscopic Diminishing Abrasive Technology, (MDAT), removes light oxidation, chemical degradation, surface contamination, stains and light surface scratches with ease. In addition, because our microscopic diminishing abrasives breakdown as you use them, PlastX Clear Plastic Cleaner & Polish is safe on plastic rear windows on convertible tops, aircraft windows, motorcycle fairings, face shields, headlights and taillights, instrument panels, all clear plastic boat surfaces and aquariums. Meguiar's PlastX also contains highly water-resistant polymers. These specialized hi-tech polymers provide long lasting durable protection to keep your clear plastics clear and beautiful longer. PlastX is non-toxic and does not contain any harsh solvents.

 

I might have to check that out and let you know my findings. So far, I have Plexus which does a nice job of polishing plastics.

 

Plastx is aswesome. I use it on taillights and bumper lenses. works great.