The Baja is actually the second all-plastic thermoformed vehicle from Automotive Design. Last year they unveiled production plans for the Paradigm, a four-door mid-side vehicle that has a thermoformed body made of coextruded acrylic styrene acrylonitrile and ABS sheet. It will get approximately 50 miles per gallon in highway driving, will weight less than 1,800 pounds (compared to about 3,800 pounds for a similar-sized, steel-shelled car), and…