My weekly driver had to be raised from where I wanted it, to where it would clear *most* speed bumps. The panel van I am going to put back on the road will be stock height with wheel spats like your solar streamliner surely had. Differing purpose.
Have you researched
Luigi Colani? He has a handle on aerodynamics like Nikola Telsa had on electricity, they can make them do tricks. Here is a car based on the Water Strider than is an inverted airfoil:
