The performance of asphalt modified slot cars is influenced by several key process parameters. These include the type and concentration of modifiers used, such as polymers or additives, which affect the viscosity and elasticity of the asphalt. Additionally, the mixing temperature and time are critical, as they determine the uniformity of the modification. Finally, the cooling rate post-mixing can impact the final properties of the asphalt, affecting its durability and performance in slot car applications.