We are in a decade of great technological progress, catalyzed by the development of the computer, which supplies tools that were unthinkable in the past, in order to accelerate the pioneering of developments for the betterment of mankind. In the field of automotive safety, remarkable developments like AIR BAGS, and the anti-blocking breaking system, have complemented the safety brought by the safety belts. Automobiles are improving each year, in terms of comfort, aerodynamic profiles, more powerful and efficient engines, with less pollution, very high acceleration rates and sophisticated commands, as if they were destinated to run alone in perfect streets and highways. In everyday utilization, however, the scenario is completely different, full of risky situations, brought by high speed and a great number of other different causes. Among them, a dramatic situation has existed since the beginning of the automotive industry, in which the occupants of smaller vehicles are totally