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His knowledge of the latest aeronautical engineering techniques would prove vital towards achieving the major automotive technical advances he is remembered for. The technique resulted in a body that was both lighter and stronger and also provided better driver protection in the event of a crash. Even today struts used in the rear of a vehicle are known as Chapman struts while virtually identical suspension struts for the front are known as MacPherson struts that were invented 10 years earlier in 1949.

His knowledge of the latest aeronautical engineering techniques would prove vital towards achieving the major automotive technical advances he is remembered for. In 1952 he founded the sports car company Lotus Cars. He was famous for saying "Adding power makes you faster on the straights.