Couldn't agree with you more cameo1956. I doubt that an Ad pickup ever saw a wind tunnel to check out air drag when they were being produced. I didn't build my pickup to be fuel efficient, I built it to my tastes. I would suspect the wind drag on any fat fendered vehicle would be terrible and not fuel efficient. I am sure my visor is not going to be a major factor in my fuel consumption. I can't seem to keep my foot off the gas pedal on my 400 horsepower engine. As for the other add-ons, air horns etc. each to his own preferences and tastes. Build it to your specs. Thats what makes this hobby great. Just my very open opinion!!