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There are various tests for evaluating how well a vehicle protects people in a crash. The frontal and offset crash test is one of the most important tests that evaluate the crashworthiness of a vehicle. In this paper, we will discuss some parameters that have a major effect on the amount and pattern of intrusion into the occupant compartment during the frontal and offset crash test. And the characteristics of impact are described according to the types of chassis frame, T-type frame and #-type frame. The T-frame has worse performance than #-frame in crash, So it is necessary to make stronger dash compartments in T-frame. We will design a vehicle which has optimized body, chassis structure and material selections by controlling major parameters of frontal crash performance.