The DeLorean's body was famously made from brushed stainless steel. The body panels naturally resist corrosion and they were not painted with a clear coat. The body panels are quite thin. Most of the shape of the body comes from the fiberglass underbody that the stainless steel panels are attached to. The underbody can best be seen by looking through the rear quarter panel windows on either side of the engine compartment (engine is in the rear).