From
The Ultimate Encyclopedia of Formula One:
A controversial finish
Race director Jacky Ickx, a renowned wet-weather expert in his days in Formula One, found himself in the midst of a political storm as he was accused of deliberately stopping the race to ensure Prost won. Ickx drove for Porche in sports car racing, the conspiracy went, and so of course he wanted Prost, who was powered by a Porche-built engine, to win. Many people pointed out that the rain was as hard when the race was stopped as at any time in the afternoon.
Despite Pascal's eyewitness accounts it's hard to overlook the Ickx-Porche relationship but even more so the claim that the intensity of the rain remained
constant throughout the race.
For the record, 7 drivers retired due to spinning off circuit or through collisons. That's not an alarming number and considering that they ran 8 trouble free laps from lap 23 to lap 31 where the race was stopped, it's rather puzzling that the race was called off.
From Forix:
Classification
Cla Nº Driver Car / Engine Laps Time Delay/Retirement
1 7 Alain Prost McLaren/TAG 31 1:01'07.740
2 19 Ayrton Senna Toleman/Hart 31 1:01'15.186 7.446
3 28 Rene Arnoux Ferrari 31 1:01'36.817 29.077
4 6 Keke Rosberg Williams/Honda 31 1:01'42.986 35.246
5 11 Elio de Angelis Lotus/Renault 31 1:01'52.179 44.439
6 27 Michele Alboreto Ferrari 30 1:01'08.404 1 Lap
7 24 P.Ghinzani Osella/Alfa Romeo 30 1:01'44.802 1 Lap
8 5 Jacques Laffite Williams/Honda 30 1:02'07.465 1 Lap
4 Stefan Bellof Tyrrell/Ford 31 1:01'28.881 Disqualified
22 Riccardo Patrese Alfa Romeo 24 50'05.844 Steering
8 Niki Lauda McLaren/TAG 23 45'53.369 Spun off
14 M.Winkelhock ATS/BMW 22 44'07.035 Spun off
12 Nigel Mansell Lotus/Renault 15 29'28.583 Spun off
1 Nelson Piquet Brabham/BMW 14 28'56.715 Electrical
25 F.Hesnault Ligier/Renault 12 25'07.591 Electrical
2 Corrado Fabi Brabham/BMW 9 19'25.334 Electrical
20 Johnny Cecotto Toleman/Hart 1 2'35.136 Spun off
16 Derek Warwick Renault 0 - Collision
15 Patrick Tambay Renault 0 - Collision
26 A.de Cesaris Ligier/Renault 0 - Accident
That's no more alarming than last year's race in the dry:
Classification
Cla Nº Driver Car / Engine Laps Time Delay/Retirement
1 2 David Coulthard McLaren/Mercedes 78 1:49'28.213
2 4 R.Barrichello Ferrari 78 1:49'44.102 15.889
3 11 G.Fisichella Benetton/Playlife 78 1:49'46.735 18.522
4 7 Eddie Irvine Jaguar/Cosworth 78 1:50'34.137 1'05.924
5 17 Mika Salo Sauber/Petronas 78 1:50'48.988 1'20.775
6 1 Mika Hakkinen McLaren/Mercedes 77 1:49'32.819 1 Lap
7 22 J.Villeneuve BAR/Honda 77 1:50'08.074 1 Lap
8 15 Nick Heidfeld Prost/Peugeot 77 1:50'39.719 1 Lap
9 8 Johnny Herbert Jaguar/Cosworth 76 1:50'43.147 2 Laps
10 5 H-H.Frentzen Jordan/Mugen-Honda 70 1:38'30.235 Spun off
19 Jos Verstappen Arrows/Supertec 60 1:26'38.080 Spun off
3 M.Schumacher Ferrari 55 1:17'04.191 Suspension
23 Ricardo Zonta BAR/Honda 48 1:09'22.500 Spun off
9 Ralf Schumacher Williams/BMW 37 52'24.925 Spun off
6 Jarno Trulli Jordan/Mugen-Honda 36 50'55.680 Gearbox
16 Pedro Diniz Sauber/Petronas 30 43'19.447 Spun off
14 Jean Alesi Prost/Peugeot 29 41'13.947 Transmission
21 Gaston Mazzacane Minardi/Fondmetal 22 32'00.286 Spun off
20 Marc Gene Minardi/Fondmetal 21 30'36.346 Gearbox
12 Alexander Wurz Benetton/Playlife 18 26'16.800 Spun off
10 Jenson Button Williams/BMW 16 23'28.720 Engine
The race should not have been stopped. Perhaps the Ickx-Porche relationship is a stretch but that they ran trouble free from lap 23 to lap 31 puts doubt into the officiating of this particular grand prix. And again the claim that the intensity of the rain remained
constant throughout the race. If there is evidence to the contrary with respect to the weather, I'd love to read it.