1. A system for detecting objects and vehicles comprising: a pair of cameras mounted on a host vehicle, and arranged with respect to each other in a narrow-baseline orientation and directed rearwardly from a front section of the host vehicle so as to view an area along a side of the host vehicle and beyond a back end of the host vehicle; a processor that detects an object or vehicle and that derives an approximate range based upon an input image from each of the pair of cameras; and an output device that reports detection of the object or vehicle within a predetermined range of the host vehicle.