1913 Alfa Aerodinamica, body by Carrozzeria Castagna, might have influenced the designs to follow, like the Dymaxion

above image is from http://www.clothesfreeforum.com/showthread.php?17732-What-kind-of-a-car-is-this/page40 

Above image via MegaMoto http://megamoto.tumblr.com/
Do you also see the similarities to the below 1921 Rumpler, in the fenders especially Do you also see the similarities to the Dymaxion http://justacarguy.blogspot.com/2007/07/funky-car-that-is-from-one-of-earliest.html