The pillar post trim is a decorative piece you can mount on the vertical door and window pillars of your automobile. Many motorists don't even know what a pillar of a car is, much less the pillar trim. Regardless, they're probably among the most visible and prominent of automotive design features just short of the bumper or the windshield. You'll most likely start paying attention to your pillar even without knowing its name when it starts getting scratched and scuffed up, detracting from your ride's beauty. With that said, here are some considerations when shopping for pillar trim.