The best way to make your car look better is to fix the badly faded headlight.
Nothing makes a car look old or ugly more then yellow faded headlights. By fixing this you takes years of the cars age. Especially if you are selling it clear head lights are a must.
There are lots of kits on the market to fix your head lights but they are expensive and some don't even work that well.
So here is a clip on a way you can do this for only a few dollars and some elbow grease.
Step 1: This Is a Clip From My YouTube Channel" Home Mechanics" Explaining My Method.
This method works really well especially if you put in the extra effort.
Also they will stay looking like new if Everytime you wash your car you give them a quick buff up with some fine cut polish. That is if you wash your car at least once a year.
I have done it like this for years. I thought it up when I worked at a automotive panel beating shop thinking if it works on paint why not plastic.