Ford Motor Company started using bioplastics back in the 1930’s. Ford’s 1941 biological car was made of soybean, wheat, hemp, flax and ramie fibers in a soy-based phenolic resin. It weighed 1,000 pounds less than a steel car. – WTF Fun Facts
Source: http://exclusive.multibriefs.com/content/back-to-the-future-with-ford-bioplastics/manufacturing