For all the suggestions of alternates, no.... the characteristic is has is the way the doors and body form an extreme wedge shape, both in cross sectional area and longitudinal profile. Boxed in area below must similarly be featured on it:
It kinda was a like a cross between the above Stratos prototype and the Ferrari Pininfarina 512 Modulo prototype (for overall longitudinal shape)...
I'll probably never know what it was that I saw... If we only had digital cameras, the internet, and Google back then....LOL