Australian Grand Prix that became the Tasman Series. The top European Formula One teams and drivers raced the European winters in Australia and New Zealand from 1963 to 1969 playing host to a golden age for racing in the region for which the Australian Grand Prix (and the New Zealand Grand Prix) became jewels of the summer. The popularity of the Tasman formulae was directly responsible for 1966's "return to power" in Formula One, and having spent years developing with Repco the Brabham cars and eventually the Oldsmobile-based Repco V8s in the Tasman series gave Jack Brabham the opportunity to unexpectedly dominate Formula
Brabham BT19 which Brabham described as "Brands Hatch on steroids". On the opening lap Brabham took the lead from Surtees, now driving a Cooper-Maserati. Brabham won after a race-long fight with the Englishman in the rain. With four wins and more finishes than any of his championship rivals, Brabham had a 22-point lead in the drivers championship and could only be caught in the championship by Surtees or Stewart if one of them won all three of the remaining races. Jack Brabham used BT19 again at the Italian Grand Prix at Monza, another high speed circuit. A second BT20 was completed at