For example, the best ... make sure they’re installed correctly. According to AutoZone, new LED headlight assemblies start at about $600. The bottom line? Sometimes the smartest car upgrades ...

Car customization is a booming business. Consumers spend billions every year on aftermarket parts. Still ... suspension can produce a harsh ride and make body panels more vulnerable to scrapes.

For Audi lovers, attractive interior accessories are valuable because they improve the look and feel of the car’s interior.