The thing I am fascinated with,
today, is the
M-80 Stiletto. Hydrodynamics is related to aerodynamics courtesy of Reynold's number.
The M-80 trades fineness ratio, as you see in corvettes, for modulating the interface with the medium it rides on. The 'underbody' is highly refined, a 'pentamaran'. The intermediate hulls are thickened for the surface-piercing propellors. (Their fluted blades are interesting in themselves. The forward aspect of the hull is viewable at:
https://newatlas.com/stiletto-experi.../5151/#gallery
Long story short — the underbody shouldn't be flat, it should be two pontoons to enclose the wheels and a Bucky Fuller 'air keel' in between. I'll leave how to apply that to a Prius as an exercise.