His knowledge of the Lotus 72 helped McLaren develop the M23 and that season Fittipaldi gave McLaren its first drivers' and constructors' world championships, beating Ferrari, Tyrrell and Lotus.
O seu coñecemento do Lotus 72 axudou a McLaren a desenvolver o M23 e esa tempada Fittipaldi deulle a McLaren os seus primeiros campionatos mundiais de pilotos e construtores, superando a Ferrari, Tyrrell e Lotus.