Power came from the latest version of 2.5 litre Climax FPF which developed around 240 bhp and drove the rear wheels through a Cooper five-speed gearbox.
At its first World Championship event at Monaco, Brabham qualified second but in the race itself he was disqualified after spinning off and then receiving a push start.
Thereafter, Brabham reeled off five wins in a row to tie up the World Championship with two events to spare.
II to comply with the new F1 regulations, but Scuderia Centro Sud sourced a Maserati engine instead.
Stirling Moss and Jack Brabham won all five races in the series with the car, fitted with a 2.7 litre version of the FPF engine.