The main objective of this project is to study and ana;yze the integral chassis of a sedan car. It is to see the stress distribution in the chassis when it is subjected to various kinds of loads. For example, in this project, analyses such as bending load, torsion load, lateral load as well as longitudinal load analysis are investigated. In this ptoject also, the stress distribution and deformations (or deflections) of the chassis designs are investigated for different modification to the chassis geometries and different materials.