This is the 1939 Schlor car aka pillbug.
Schlörwagen "Pillbug" - ApteraForum.com - Unofficial Aptera Car Forum
A little irony about the Schlor car...if we had a plan view, Solidworks will convert 2D images into 3D at the click of a button...d'oh!
And I believe I found the E1 Tracer. I wouldn't recognize what you're calling the pumpkin seed car if I saw it - google doesn't show me cars when I type that in.
I've found a bunch of SAE technical papers. I'll pick them up at U of T soon. I found a few of Morelli's old papers too.
A comment about the Aptera: the 1998 GM Precept got down to 0.153 Cd in just a few hours of wind tunnel testing (0.168 final shape). That's on par with the "ideal" shaped Aptera. imo the Precept is a fairly normal, and nice looking vehicle. Either Aptera screwed up the shape, or there's more to ground plane aero than we know.