Abstract: This study aims to understand factors that improve business performance and gain a competitive advantage. It compares the operations and supply chain procedures of automakers like General Motors, Toyota, and Ford to assess their management efficiency ratios. The research examines the cash conversion cycle, cash conversion cycle, receivables turnover, inventory turnover, and total asset turnover. General Motors leads in quickly turning sales into profits, with shorter collection periods and lower inventory holdings. The study also highlights the complex interplay between financial success, competitive advantage, and operational excellence in the automobile sector. By utilizing this information, companies can improve their supply chain operations and long-term competitiveness.