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A-pillar is the structural component of an automobile's frame found between the windshield and the front doors.

  • It is known as the A-pillar since it is the first frame supporting and joins the side of the vehicle's body to the roof structure and holds the front windshield. Strong steel alloys make up the A-pillar to ensure that it can withstand a crash or a rollover and comply with safety regulations.
  • In most cases, the A-pillar blocks the driver's vision, resulting in a blind spot. As a result, some automakers slimmed and chamfered the A-pillar to reduce blind spots, improving the driver's visibility.