The FX3B was used for the first three races of the 1973 season , and had been driven by New Zealander Howden Ganley and Italian Nanni Galli .
Jackie Pretorius had filled in at the South African Grand Prix when Nanni Galli was injured .
The FX3B was used for the first three races of the 1973 season , and had been driven by New Zealander Howden Ganley and Italian Nanni Galli , although Jackie Pretorius had filled in at the South African Grand Prix when Galli was injured .