Beeler 2014: "[T]he two designs, the Honda Honda NM4-1 (black) and Honda NM4-2 (white) are sort of a mashup between the company’s DN-01, Valkyrie, and the bike from the anime movie Akira." Beeler, Jensen (March 20, 2014), 2014 Honda NM4 Vultus Debuts in Japan, Asphalt & Rubber