A/B/C -PILLAR
A car's pillars support its roof and are best identified when seen side·0n. The A-pillar is the beam in front of the front door. on either side of the windshield. The front door latches onto the B-pillar. and the rear door is hinged on it. The C-pillar is behind the rear door. Station wagons and MPVS often have a D-pillar too.