Compartments and Pillars of a Car – Automobile Gyaan

In order to understand the compartments and pillars of a car, we need to understand the basic design components and Chassis.  A car involves combining various parts and mounting them on a frame. This frame is known as chassis.

Chassis consists of the following components

  • Body shell
  • Engine
  • Transmission
  • Suspension
  • Steering
  • Brakes
  • Electricals, Comfort and Safety Features

Car designs vary. In order to understand the various designs, a car is divided into separate boxes or compartments (Engine, Passenger and Cargo) with up to 4 pillars or post (A, B, C and D) moving from the front to rear when viewed from the side.

Three Box Design

 

Compartments of a car - Sedan three box

Honda City sedan with typical three-box design showing the A, B and C pillar placement

Two Box Design

Compartments and pillars of a car - Hatchback two box

Ford Focus hatchback with typical two-box design showing the A, B and C pillar placement

Compartments and pillars of a car SUV two Box

Hyundai Creta/Ix25 SUV with typical two-box design showing the A, B and C pillar placement

Compartments and pillars of a car - SUV four pillarKIA SorentoSUV with typical two-box design showing the A, B, C and D pillar placement

After understanding the compartments and pillars of a car, we would now discuss the classification of a car based on shape and classification of Indian cars according to SIAM (Society of Indian Automobile Manufacturer’s).

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