The performance of asphalt modified race cars is influenced by several key process parameters in asphalt or bitumen modification. These include the type and concentration of modifiers (such as polymers or rubber), the mixing temperature, and the shear rate during processing. Additionally, the curing time and conditions can affect the final properties of the asphalt. Proper control of these parameters ensures optimal viscosity, elasticity, and durability, which are critical for high-performance racing applications.