Electric vehicle (EV) battery packs are the core energy storage systems that power modern electric cars, providing the necessary electricity to drive electric motors. A typical EV battery pack consists of multiple battery cells arranged into modules, integrated with a battery management system (BMS), cooling systems, and structural reinforcements. These components must work together efficiently to ensure performance, durability, and safety under various driving conditions. The design and manufacturing of EV battery packs involve advanced Computer-Aided Design (CAD) systems, which enable engineers to model complex geometries, simulate thermal and mechanical behaviours, and optimise weight and space efficiency. a) List FIVE (5) key CAD software tools commonly used in the design and manufacturing of EV battery packs.