The Soybean Car was actually a plastic-bodied car unveiled by Henry Ford on August 13, 1941 at Dearborn Days, an annual community festival. The frame, made of tubular steel, had 14 plastic panels attached to it. The car weighed 2000 lbs., 1000 lbs. lighter than a steel car.
The second brain contains some 100 million neurons, more than in either the spinal cord or the peripheral nervous system, Gershon says. This multitude of neurons in the enteric nervous system enables us to feel the inner world of our gut and its contents.
the brain contains about 10^11 (100 billion) neurons. If we assume that the average neuron has 1,000 connections (not unreasonable), and that each of these connections stores one byte, then your figure of 100 terabytes is reasonable. So that's about one hundred thousand (100,000) gigabytes.