To make the full-size model, modelers start with a framework of the vehicle, typically made of foam. Over that, they smooth thousands of pounds of clay over one half of the car.

Car manufacturers have been using small scale and full-scale clay models since the 1930s and it won't change any time soon. Here's the reason.

To make the full-size model, modelers start with a framework of the vehicle, typically made of foam. Over that, they smooth thousands of pounds of clay over one half of the car.

For almost 100 years, car companies have been using clay models in the design process of automobile development, but with all the technology available to them now, why do they still employ the ...