I am a big believer in Meguiars car care products. They do a great job and are affordable and readily available. For my tires I use Meguiars Hot Shine Foam (costs about $5.25). It cleans, shines and protects my tires in one easy spray application. Today, I found another use for it- the black inner fender plastic liners. It adds a nice finishing touch to your Challenger in preparation for car shows.