Abstract: An improved wind deflector including an extruded aluminum support member having a forwardly projecting rounded nose portion to initiate wind deflection, and angularly related generally vertically and horizontally extending walls to receive an acrylic transparent wind deflector member and brackets to secure the extruded member to vehicles. Preferably the extruded support member has vertically extending relatively movable parallel walls to receive and clamp the acrylic wind deflector therebetween in such a manner that it is not necessary to project fasteners through the acrylic member to weaken it or start fractures therein. Also the extruded support member has horizontally extending relatively movable generally parallel walls between which brackets project to secure the extruded member to the vehicle, and wherein clips are employed to secure the brackets to the extruded member.