The chapter explores the critical role of copper and its alloys in the automotive industry, highlighting their widespread use due to outstanding electrical, thermal, mechanical, and corrosion-resistant properties. As vehicle technologies evolve toward electrification and intelligence, demand for high-performance copper alloys—such as brass, bronze, copper-nickel, and specialized variants—continues to grow. These materials are essential in systems such as power electronics, braking, transmissions, and thermal management. The chapter details alloy classifications per standard compositions and mechanical properties. Key materials are discussed for their superior strength and conductivity. The chapter concludes by illustrating alloy applications across various products.