His "old fashioned" cars won the Brabham team the 1966 and 1967 championships, and were competitive in Formula One until rule changes forced a move to monocoques in 1970.
Estes coches "pasados de moda" déronlle ao equipo Brabham os campionatos de 1966 e 1967 e mantivéronse competitivos na Fórmula 1 ata que os cambios no regulamento obrigaron o paso aos autoportantes en 1970.