The objective of this investigation is to develop a polymer matrix composite in which epoxy resin serves as the matrix. Reinforced with both glass fiber and almond shell. The primary goal is to decrease the weight of automotive components while simultaneously enhancing their hardness and strength. The results demonstrate that increasing the ratio of fiber particles significantly enhances the tensile strength of the composite material. Additionally, findings from flexural tests indicate that the hybrid fiber configuration, which combines glass fiber and almond shell, offers greater advantages compared to existing composites. This innovative approach leverages the complementary properties of synthetic and natural fibers, resulting in a material with superior performance characteristics, especially in terms of stiffness and load-bearing capacity. Hardness testing further demonstrates the suitability of this composite for applications requiring high strength-to-weight ratios, confirming its potential for use in demanding automotive environments. Notably, the developed composite is environmentally friendly, as it incorporates renewable almond shell fibers, reducing dependency on fully synthetic materials. This use of almond shell, an agricultural by-product, also contributes to the sustainability and cost-effectiveness of the composite. By integrating these diverse materials, the project successfully creates a high-performance, lightweight, and eco-friendly composite suitable for modern automotive applications. This advancement presents a promising alternative to traditional materials, promoting both environmental responsibility and enhanced material performance in the automotive industry. © 2025 Elsevier B.V., All rights reserved.