Leaf springs have been a fundamental component of vehicle suspension systems for centuries, providing robust support and damping capabilities. Over time, advancements in material science, manufacturing techniques, and design methodologies have shaped the evolution of leaf springs. However, despite their enduring utility, leaf spring engineering faces various challenges in meeting the demands of modern vehicles, including the need for enhanced performance, reduced weight, and increased sustainability. This article explores the existing challenges and promising future trends in leaf spring engineering.