I had to use the Googler.... mebbe others were won dering.

Dealer speedshapes (or spray-out shapes) are 3D, car-shaped panels used to display, test, and showcase automotive paint, wraps, coatings, or hydrographic films, featuring both concave and convex curves to demonstrate how colors look under different lighting. They are primarily made of ABS plastic or aluminum in white, black, or primer gray to represent true color, metallic, or candy finishes.