In 2010 Mazda tried the soy sh*t in their plastic interiors and wiring not only did they have the varmits eating the wiring, the car consoles warped. Needless to say they quickly went back to the petroleum derivatives.
“In 2010 Mazda tried the soy sh*t in their plastic interiors and wiring...”
In 1944, because of the WWII effort, Montana issued license plates that were soy-based. Horses and cows loved ‘em!
https://www.greatfallshistorymuseum.org/blog/soy-license-plates