Yes, the material of a car speaker’s cone can impact its bass output. Therefore, for excellent bass performance, the cone’s material should be lightweight, rigid, and properly damped.  The cone’s material must be rigid to ensure it doesn’t bend or flex when moving. Bending or flexing of the speaker cone can lead to sound distortion. The cone’s rigidity is highly critical in the case of bass frequencies as they involve a lot of cone movement.  Next, the cone should be lightweight to easily move back and forth for accurate sound reproduction.  Lastly, the cone should be properly damped to ensure it stops vibrating as soon as the audio signals stop. Continued resonance of the cone can lead to sound distortion.  Speaker cones are typically made from materials, such as aluminum, polypropylene, treated paper, and so on.