The article examines customer behaviour in general and discusses factors determining customer behaviour in car industry. The paper describes a concept of consumer behaviour and the importance of factors influencing the situation. Empirical study about factors determining car industry in consumer-made decisions is carried out. In addition, statistical factor analysis is performed. The key sets of factors helping the user with choosing a new car are iden­tified and analysed at the level of the groups of factors (factor). The conducted analysis shows that car price, ergonomics, image, dynamic and user-friendliness as well as environmental groups are the main points that assist in buying a new car.