This recent article over at Ars Technica got me thinking:

How are body panels for a car like this made? They seem functional, and they seem very well shaped. Creating a set of stamps/dies for a single car seems like it would cost a ton. Are body panels like this shaped by hand, or do you think they use something like a CNC machine to mill them out, or mill out some molds and make them out of fiberglass? Or would something like this be done entirely by hand, either panel beating or tons of sanding and Bondo?