My left headlight is foggy, so I was going to remove it from thecar and sand/polish it with compunds made just for plastic, to regain the same clarity on both doors. As I was thinking about this, the thought of fastening a smooth piece of pastic across the headlamps/fog lamps crossed my mind. It would give it a more clean look similar to the 94+ 124's. My concern would be the disipation of heat from the lamps.
Sorry if my typing is off, I am typing with one hand and holding my son in the other.

I am going to remove the yellow filters on the foglights. I found this by doing a search on this borad:
124 removal-first you have to remove the headlight wipers, then the retaning plate/trim strip...the screws/nuts are fairly easy to find. Then you have to CAREFULLY pull up the retaining clips on the headlight lenses themselves in order to loosen the lense. Also, make sure you have removed the turn signals to assure clearance. I don't quite remember, but there may be a screw or two securing the lens to the headlamp assembly, the key is NOT to force anything. Once you have the lens off, just pull back the clips securing the yellow filter and pull it off. With my 124, which is a 1990, the filters were brittle so wear gloves as it can break in your hand. Good luck, as the results are worth it! Even the stock h3 bulbs look a lot better and brighter...upgrading to some PIAA or Solaris bulbs should be even better.

I just remove the little yellow covers, the look like tiny little shot glasses. I theink the trick is to remove the light as an assembly, then remove the plastic doors. Polishing will not work, since the doors are yellow due to UV. Oh well at leatrs my lights look cool now.