From the video it appears to me describing the cut-off edges on the rear of the Prius as "fins" is quite a stretch. But the aero benefits of the sharp trailing edges make sense to me.
The Honda stats are kind of amusing to me: 98 hp, 41 mpg combined. My old-school, low-tech, dirt cheap, 2-valve OHV "tractor" engined Tempo has 98 hp and can get 41+ when hypermiled. Ooooo, progress!
