http://www.fixmyheadlights.com
Headlight restoration works great especialy if your car has yellow, foggy, cloudy headlights. Mustangs headlights get oxidized in the worst way. They look like scale in some cases. The best way to clean these headlights is to use the sanding, polishing and sealing method. If you are not a handy person I suggest using a professional headlight restoration service like fixmyheadlights.com.
The difference between just cleaning your headlights and headlight restoration is sealing them. The UV ray play havoc on you lenses.
If you are in South Florida in Miami or Broward County call fixmyheadlights.com to restore your headlihgts. You will be happy that you did.