Several factors influence the performance of Peugeot 207 SV modified bitumen in asphalt and bitumen modification systems. Key factors include the type and percentage of polymer used for modification, the processing temperature during mixing, and the compatibility of the bitumen with the aggregates. Additionally, the aging resistance, elasticity, and viscosity of the modified bitumen are crucial for ensuring durability and performance in various environmental conditions. Proper formulation and testing are essential for optimal results.