The textbook presents the designs of mechanisms and systems of cars and tractors, describes their structure and operation, presents kinematic diagrams of units and assemblies. Issues related to the classification and design of the clutch, its individual mechanisms are considered in detail. General information and requirements for gearboxes, their classification are presented. The device and principle of operation of axles and drive wheels, control mechanisms and braking systems of cars and tractors, including the anti-lock system of working brake mechanisms with a hydraulic drive, are described. The general arrangement of tractors is presented. Issues related to the control and working equipment of tractors are considered.The textbook is intended for students studying in the areas of training "Ground transport and technological complexes", and will also be useful to engineering and technical workers involved in the operation of vehicles and tractors .