Nanotechnology is rapidly advancing and creating innovation in the automobile industry. One of the most important factors influencing the recent drastic changes in the automobile sector is sustainable development, together with technical advancement. Leading this transformation are nanomaterials meticulously designed at the nanoscale (1–100 nm) that demonstrate extraordinary features absent in traditional materials. This chapter explores the transformative impact of nanotechnology on the automotive sector. It describes how carbon nanotubes (CNTs), graphene, nano-enhanced polymers, and nanocoatings can create safer, stronger, and lighter electric vehicles (EVs) while lowering energy costs and opening the door for creative, environmentally friendly production techniques. The use of nanomaterials in emission control systems and the creation of self-repairing and self-cleaning surfaces exemplify this shift towards enhanced performance, extended lifespan, and reduced environmental impact. In conclusion, the chapter addresses the challenges to the widespread adoption of automotive nanotechnology, particularly concerning cost, scalability, and environmental health and safety (EHS) issues.