Abstract: In a subframe assembly for a vehicle, a front portion of a fuel tank supported on a subframe overhangs forwardly from a front cross-member of the subframe to increase the volume of the fuel tank. In order to compensate the forward displacement of the position of the gravity center due to the overhanging of the fuel tank, an exhaust silencer is supported to overhang rearwardly from a rear cross-member of the subframe, and a rear differential supported by the subframe below a lower surface of the fuel tank is disposed in proximity to the rear cross-member inside the subframe. Thus, the position of the gravity center of the subframe assembly is maintained at a substantially central portion of the subframe.