In order to know tire transfer function precisely enough for automated driving in dynamic situations and even to be able to use tire as a sensor instead of black box, it is necessary to understand several phenomena of the tire transient behaviour. In this research tire is considered as a physical system a composition of particular physical properties. With help of eight in-rim cameras carcass lateral stiffness and damping as well as its bending behaviour were analysed and described in a physical simulation model. The main result is understanding of several physical processes of a rolling tire and their influence on its transient handling behaviour, which is necessary nowadays for further development of driver assistance systems and autonomous driving.