However , it was rumoured that the FG01 was little more than a re-working of the GR02 .
The car 's aerodynamics were completed by former Brabham employee Hans Fouche using wind - tunnels in South Africa , and composite work was done by the Belco Avia company .
It was rumoured that the FG01 was little more than a re-working of the GR02 .
The car 's aerodynamics were completed by former Brabham employee Hans Fouche using wind - tunnels in South Africa , and composite work was done by the Belco Avia company .