Science and Education Publishing American Journal of Vehicle Design 3 1 2015 07 27 Importance of Tires: Case Study in Hungary 27 30 EN Adam TOROK Department of Transport Technology and Economics, Budapest University of Technology and Economics, Budapest, Hungary AJVD2015314 10.12691/ajvd-3-1-4 2015 07 12 2015 07 24 2015 07 27 Nowadays lots of effort have been done in EU-wide to enhance road safety. Huge effort has been done by vehicle manufacturers and road infrastructure managers. Very little is being known about vehicle owners and their role in road safety. Even less research has been done in season tire changing. In this paper author investigated the tire changing systems and their financial consequence. Firstly the accidental dataset were investigated secondly the financial consequence of season tire changing were analysed especially in Hungary. Findings in this study showed that tire related fatal road accidents become more and more significant in Hungary. Furthermore seasonally changed summer and winter tires are less expensive if proper usage is considered without overrunning. The harmful environmental effect of lower renewal interval of season tires are also mentioned.