"I love your content, Rain, but I have to sympathize with Joe Jonston here.  Testing, measuring, and adapting is science in the finest tradition.  While we're more concerned with not being wasteful of fuel today, aerodynamics made a significant contribution to vehicle range in those early times, continuing the process of unifying the country.  Most of the spin-off benefits they cited are sound, or could be developed into something sound.  I'll buy that the issue of increased storage space is a little suspicious, tho.  Nothing beats a box for storage efficiency."