<p>The phenomena that occur during a vehicle collision are extremely complex, to such an extent that car manufacturers are forced to carry out full-scale tests in order to draw conclusions about vehicle behavior. Fortunately, for the engineering calculations required in a collision analysis, equations can be considered, which, with reasonable development, and with good judgment, lead to reliable results. This book seeks to take a first step on the exciting topic of the Theory of Vehicular Collisions, because this field of science has crucial importance, for example, in clarifying circumstances of serious criminal and civil penalties situations. A brief historical review about the development of collisions theory is also included.</p>