Here is a rare color photo of the Ford Soybean Processing plant at the Rouge plant, circa 1943. Ford was a big advocate of the soybean and it's said that a bushel of soybeans went into each Ford car. Soybean plastic shift knobs & window risers, soybean oil in the paint and soybean fibers in the upholstery fabrics.
This doesn't even count Ford's fascination with soybeans as a food. This will be covered in a separate post, as it's worthy of it's own entry.