Abstract: An impact sensor is mounted to the front portion of a vehicle body so as to operate with a desired responsiveness. The impact sensor is located below a horizontal line passing through the upper end portion of a stiffener for a bumper of the vehicle and behind a vertical line passing through a front end portion of the stiffener. The stiffener is stiffer than a portion of the bumper which is located on a horizontal line passing through the stiffener. Crash energy is not transmitted to the impact sensor during a light crash and, as a result, the air bag is not inappropriately inflated during such a light crash.

Abstract: A front body structure forms an engine compartment in front of which a flat heat exchanger, provided with a pair of cooling fan units projecting lengthwise and rearward therefrom and transversely arranged with a space therebetween, is positioned. The front body structure includes a front body frame structure, defining opposite side walls of the engine compartment, and a front end frame structure, defining a front end wall of the engine compartment, which includes an upper front cross member extending transversely between the side walls so as to form an upper front end of the engine compartment. Stay members extend downward from the upper front cross member and are arranged so that a space between adjacent stay members is formed for receiving a cooling fan unit. A lower front cross member, extending transversely of the car body between the opposite side walls, forms a lower front end of the engine compartment.