Completing the top 10 were Andrea de Cesaris 6th in his Alfa Romeo , Manfred Winkelhock 9th in his ATS BMW and Mauro Baldi 10th in the second of the Alfa Romeo V8 turbo's.
At this power circuit, the fastest of the 3.0L, naturally aspirated V8 Cosworth DFY runners was reigning World Champion Keke Rosberg in his Williams who could only manage 16th on the 26 car grid. Rosberg's time was 6.169 seconds slower than Patrese's pole time in his Brabham who's turbo BMW engine which was putting out approximately 850 bhp (630 kW) in qualifying compared to about 540 bhp (400 kW) for the non-turbocharged Ford - Cosworth . 0158-4138