designing and producing visual interpretations of automobiles and their components using computer-aided design packages; deciding on the most appropriate materials for component production; applying mechanical, thermodynamic, pneumatic, hydraulic and electrical principles to resolve engineering problems and find appropriate solutions; building prototypes of components, developing test procedures and conducting tests using software packages and physical testing methods; researching, designing and developing machinery and systems for automobiles; preparing material, cost and timing estimates, reports and design specifications; studying the energy, environmental and safety aspects of the planned work; supervising and inspecting the installation, modification and commissioning of mechanical systems in industrial facilities or plants; investigating mechanical failures or unexpected maintenance problems; supervising technicians, technologists and other engineers, and reviewing and approving designs, calculations and cost estimates; liaising with suppliers and handling supply chain management issues; taking responsibility for individual projects, managing associated budgets, production schedules and resources (including staff), and supervising quality control; inspecting and even test driving vehicles and checking for faults.