 Fangio was driving a Mercedes-Benz W196 that he raced in and , while Brabham (not yet Sir Jack) drove the Repco V8 powered Brabham BT19 in which he won the 1966 World Championship of Drivers.Brabham 'won' the demonstration, just ahead of Fangio, with Patterson and Jane some distance behind in 3rd and 4th.The 67-year-old Fangio had been invited to the meeting by race organiser's to demonstrate his Mercedes.