Which automotive safety feature was specifically developed after extensive analysis of customer accident reports, and reduced fatality rates by approximately 50% when made standard?

Test your knowledge about a groundbreaking product design innovation that transformed the transportation industry! This question explores how customer feedback and design thinking converged to create one of the most significant improvements to vehicle safety in the last century. Can you identify which safety feature revolutionized automobile design based on consumer research and real-world accident data?

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Anti-lock braking systems (ABS)
Three-point seatbelt design (lap and shoulder)
Crumple zones in vehicle frames
Electronic stability control (ESC)