The chapter explores the evolution, types, and integration of glass in the automotive industry, emphasizing its critical role in safety, comfort, and performance. Initially absent from early vehicles, glass became essential by 1904 and advanced to include laminated and tempered varieties. Laminated glass, primarily used in windshields, features dual panes bonded with polyvinyl butyral (PVB) for impact resistance and UV protection. Tempered glass, used in side and rear windows, is thermally strengthened to shatter into blunt fragments. Additional innovations include solar glass for heat reduction, heated glass for defrosting, and XIR glass for enhanced durability and operator comfort in heavy machinery. The chapter also details modern glazing systems, which streamline manufacturing via encapsulation, extrusion, bonding, and assembly processes. Materials are evaluated for their sealing, insulation, and durability properties. Overall, the chapter highlights the transformation of glass from a basic wind barrier to a multifunctional safety and design component in modern vehicles.