This paper describes an evaluation method for the ease of an ingress motion into a car based on an evaluative structure. An ingress motion is composed of 3 basic motions. The first motion is putting the inner foot on the car floor, and the second is sitting. The last motion is putting the outer foot on the car floor. It is thought that the human evaluative structures are different and independent in each motion. In order to discuss the relation between the biomechanical characteristics and the evaluation, it is important to clarify the structures in each motion. So experiments are carried out by using a mock-up of real-size front passenger seat and with using a questionnaire survey as Kansei evaluation. Through the results of the experiments, it is found that there is the correlation between the car configuration and the evaluation. With using of this relation, the ease of ingress motion can be indicated by getting the information about car configuration and personal size.
