During lap 21, two marshals ran onto the track after the Shadow of Renzo Zorzi suffered engine failure.
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On lap 22, the Shadow car of Italian driver Renzo Zorzi retired from the race with engine failure and moved off the track on the left side.
Renzo Piano | Renzo Spiteri | Renzo Zorzi | Renzo Rosso | Renzo Moro | Renzo Montagnani | Renzo Martens | Renzo de' Vidovich | Renzo Arbore |