Which method is commonly used by car companies for low-fidelity design?

Clay modeling is a method often employed by car companies during the low-fidelity design stage because it enables designers to create tangible representations of vehicle concepts. This hands-on approach allows for quick iterations and alterations, making it easier to visualize the overall form and ergonomics of the car. By using malleable materials, designers can effectively communicate ideas, explore various shapes, and consider proportions in a physical space, which is particularly relevant in automotive design where aesthetics and aerodynamics are crucial.

While wireframing is commonly associated with digital interfaces, paper prototyping serves well in software design. 3D rendering, on the other hand, is a high-fidelity technique used to create detailed digital images of products; thus, it is less effective for initial brainstorming and concept exploration than the more tactile and direct method of clay modeling.