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The two main types of vehicle chassis and their qualities


There are two main types of vehicle chassis and they have different strengths and weaknesses. Here is a quick explanation.. 

There is a reason why different cars suffer varying levels of damage in an accident. Small cars generally get squashed to an ugly mess, while vehicles like trucks, SUVs and buses are seldom totally crushed. The reason for this is the vehicle chassis.


This is the rigid metallic frame or skeleton of the vehicle to which all the mechanical parts are attached. The chassis is the backbone of the vehicle, thus it gives strength and stability to the vehicle.

There are two main types of vehicle chassis, which are described below.

TYPES OF VEHICLE CHASSIS

BODY-ON-FRAME CHASSIS

This is also known as the conventional chassis or the frame-full chassis. In this type of vehicle chassis, the body is made as a separate unit, then joined with a ladder frame. It is used in trucks, SUVs and bigger vehicles. This chassis is often built so solidly that it sustains little or no damage in an accident.


ADVANTAGES
DISADVANTAGES

UNIBODY CHASSIS

This is also known as integral chassis, frameless chassis, monocoque chassis, unit-body chassis and nonconventional chassis. In this type of vehicle chassis, the ladder frame is absent. Instead, the body itself acts as the frame for the vehicle. It supports all the vehicle systems. This type of chassis is mostly used in hatchbacks and sedan/saloon cars.

ADVANTAGES
DISADVANTAGES

The unibody chassis is mostly used in modern vehicle types and is more suited for everyday, luxury and sort-oriented vehicles.

On the other hand, the body-on-frame chassis is better suited for commercial and heavy duty vehicles, pickup trucks, SUVs. The BMW i3 and i8 are rare examples of small cars with a separate body and frame.

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