Realistically unless things have changed, a mold that size is easily 6 figures. I remember being in high school and talking with some Maytag guys, the pump impeller mold they had/made was $120K and it was for a part that was ~2.5 inches diameter much less an engine cowl. Over a 13,000 car run I'm betting a minimum of $10/car and a lot closer to $20 in reality for the engine cowl alone. Certainly not 30 cents.
