Sutherland's Volkswagen (Utah VW Bug)
From Wikipedia: "Sutherland's Volkswagen, or the Utah VW Bug, is a 3D model. It is a mathematical model of a 1967 Volkswagen Beetle and one of the earliest 3D computer models, aside from Catmull's hand.
The Volkswagen model was created by students of Professor Ivan Sutherland in 1972 at the University of Utah. The students created the model by measuring a real version of the car with yardsticks. Only the car body is modeled, not the wheels or chassis. The model became slightly iconic after all the various parts, as measured by students, were pieced together, with the necessary rotations, scaling, and translations."
This model is based on the original file downloaded from Wikimedia Commons. The original model is not 3D-printable, as it's a single skin only, and has multiple holes and broken geometry.
The stl's here contain versions where the geometry was fixed, holes plugged, and the model made watertight. File "utah-beetle.stl" contains a version with added wheels and support for the wheels. File "utah-beetle-only.stl" contains only the original model made 3D-printable.