This is very similar to how car body design prototypes were built until the mid-1980s, when CAD become the master of prototyping. A quick photo search for "car

This is very similar to how car body design prototypes were built until the mid-1980s, when CAD become the master of prototyping. A quick photo search for "car body design clay" yields fascinating pictures. https://www.carbodydesign.com/media/2014/07/Opel-Russelsheim-Design-Studio-04-720x540.jpg https://www.carbodydesign.com/media/2014/07/Opel-Russelsheim...