A material selection including a natural material is conducted using a Simplified Life Cycle Assessment (SLCA) according to SETAC within the framework of Ford's Design for Environment (DfE) process. The aim has been to check both, the environmental performance of a design option concerning a specific component and the feasibility of methodology. The result of the simplified LCA is the recommendation to substitute glass fibers by hemp fibers in a specific insulation. The methodology provides differentiated environmental information and seems to be feasible. However, a lot of LCA experience is necessary to be enabled to simplify LCA.