Tasman racing was the original purpose of the Repco engine and Brabham's involvement was supposed to promote the 2.5-litre version.
Brabham je BT19 v sezoni 1966 uporavil še enkrat na neprvenstveni dirki International Gold Cup, kjer je osvojil najboljši štartni položaj in zmago, nato pa je na zadnjih dveh prvenstvenih dirkah uporabil novi BT20.