Abstract : The multiloop vehicular control system analysis technique is designed to maximize the transfer to the multiloop problem of knowledge and insights obtained from elementary single-loop vehicular control system analyses. The matrices representing the closed-loop multiloop system are expanded in a special fashion to forms in which the elementary single-loop systems explicitly appear. In the course of the development, the concept of the vehicle coupling numerator is introduced as an additional property of vehicle response behavior. The over- all closed-loop system analysis consists of successive closures of single, elementary system loops and loops involving vehicle transfer function numerators and coupling numerators.