This book introduces the relevant theoretical methods of vehicle system dynamics. It covers the components of the vehicle, such as tires, suspensions, and control systems, and covers the introduction, mechanical characteristics of pneumatic and non-pneumatic tires, vehicle stability control and estimation of road friction coefficient based on vehicle longitudinal dynamics, independent all-wheel drive distribution control and estimation of tire effective cornering stiffness based on vehicle lateral dynamics, evaluation of active safety based on driver-vehicle closed-loop control system dynamics, a new evaluation method for driver-vehicle closed-loop handling system dynamics, states and parameters estimation in vehicle system dynamics, vehicle maneuvering inverse dynamics, road roughness, evolution random response and ride comfort based on vehicle vertical dynamics.