The unpredictable nature of current climate issues has spurred car manufacturers to seek innovative composite materials to enhance vehicle fuel efficiency. Natural fiber-reinforced polymer composites (NFRPCs) have gained attention as a promising option because of their benefits and widespread availability, particularly in automotive applications. This paper examines various natural fibers aimed at advancing green technology in the automotive sector. Researchers have extensively studied coir fibers in matrix reinforcement, focusing on mechanical, structural, and thermal properties. Samuel et al. [8] evaluated fibers such as ukam, banana, sisal, c conut, hemp, and E-glass for engineering applications using hand lay-up fabrication. E-glass showed superior tensile strength of (63 MPa), bending strength of (0.5 MPa), compressive strength of (37.75 MPa), and impact strength (17.82 J/m2). Ukam demonstrated the highest tensile strength (16.25 MPa) and impact strength (9.8 J/m2) among natural fibers, while sisal recorded a substantial compressive strength of 42 MPa and noteworthy bending strength of 0.0036 MPa. These findings highlight how natural fibers can be advantageous in cost-effective engineering applications, competing favorably with E-glass fibers in specific stiffness requirements. Most composites in the market employ strong fibers like glass and nonbiodegradable resins such as epoxy for durability, despite environmental concerns. To address this, biocomposites are increasingly integrated into common plastics, notably in automotive components like seat parts, battery enclosures, wheel arch liners, interior trim, and air intake manifolds. This shift toward biocomposites aligns with the automotive industry's push for greener technologies, aiming to mitigate environmental impacts associated with traditional materials.