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
- 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
Honda City sedan with typical three-box design showing the A, B and C pillar placement
Two Box Design
Ford Focus hatchback with typical two-box design showing the A, B and C pillar placement
Hyundai Creta/Ix25 SUV with typical two-box design showing the A, B and C 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).