2002-2007 Cd 0.10 Audi station wagon
 

' Within the next fifteen, twenty years, I think, ( Cd ) 0.10 could be reached, because this Cd value is the same as that of a penguin, a fish/bird that doesn't look very streamlined. In terms of a car, it's a station wagon version. And if nature could build a station wagon at 0.10, then I think, with our development and research, it should be our target to be as good as nature was by itself.'
Dr. Ferdinand Piech, Vice-Chairman, Board of Management; Director, Research and Development, Audi, Interview, AUTOMOBILE Magazine, page-82, November, 1987.

This just makes me want to see a penguin with wheels. :)

see
 

You only need to see 'half' of it. Lengthwise.:)

Link-1:
https://www.wired.com/2014/11/penguin-rover/

Link-2:
https://blogionik.org/blog/2015/12/0...rbine-part-ii/


Video from link-2
Kofferfisch - Die Natur als Vorbild
https://www.youtube.com/watch?v=DFRQXTIIaHA

Despite the wheels on antenna Aptera is getting closer,

Now if the rumors of the plant nearing online status we’re true….

https://media.wired.com/photos/59323...n-drone-ft.jpg

I shall be more careful what I wish for. :)