Vehicle underfloor structure

摘要

In order to effectively cool an underfloor part, such as a transmission or a rear differential, and improve the aerodynamic conditions of the rear wheels, a front under member serving as a bottom of a front part of the vehicle is formed with left and right air passages for discharging inside air in the front part of the vehicle toward the rear wheels, and a middle air passage for contracting an outside underfloor air stream coming from the front of the vehicle, and directing the underfloor air stream along the center line of the vehicle.