This document outlines 3 steps for designing comfortable and safe car seats at the vehicle concept stage. Step 1 is to use driver models and the SAE J826 ("Oscar") guidelines to evaluate ergonomics and comfort. Step 2 is to use the same to ensure safety and comfort compliance with Federal regulations. Step 3 is to optimize the seat design for different driver postures while meeting Oscar guidelines to achieve the best comfort scores. The document emphasizes that ERL's driver models are uniquely validated to design seats accommodating all drivers at the initial concept phase.