Video: 1991 French GP race start, as Alain Prost takes lead in new Ferrari 643. 1991 French GP race start.

A disastrous start for pole man Riccardo Patrese (Williams-Renault) in the 1991 Formula 1 French Grand Prix at the Magny-Cours circuit as he drops to 10th place while Alain Prost in the new Ferrari 643 took the lead from second on the grid:

— see video above —