Worked on performance optimization within the eclipse-sumo/sumo repository, focusing on the MSVehicle component of the SUMO simulator. Applied C++ development skills to deliver micro-optimizations that reduced unnecessary data copies and pointer indirection in critical code paths. Introduced a swap-based approach to eliminate full vector copies and implemented local caching of the car-following model reference to minimize repeated pointer lookups. These changes aimed to improve per-vehicle step throughput and enhance simulation scalability. The work demonstrated a strong emphasis on algorithm and performance optimization, with all improvements committed and signed off, and no explicit bug fixes recorded during the period.