1983 Detroit Grand Prix

The II Detroit Grand Prix, held on the fifth of June 1983, was the seventh round of the 1983 Formula One World Championship.http://www.grandprix.com/gpe/rr380.html Held in Motor City itself, the 1983 Detroit Grand Prix witnessed Michele Alboreto's second Grand Prix victory, and what would be the last taste of victory for in Formula One.http://www.statsf1.com/en/1983/etats-unis-est.aspx He was joined by Keke Rosberg and John Watson on the podium, having gained the lead after a puncture for Nelson Piquet with nine laps to go dropped the Brazilian into fourth.
==Background==
The biggest news to emerge in the fortnight between Belgium and Detroit was the arrival of Gerard Ducarouge at , whom immediately set out to redesign the 93T so it would be competitive. The, perhaps, less surprising news was that were not on the entry list for Detroit, after Eliseo Salazar left the team after a difficult start to the season. Otherwise, there were no changes to the entry list or personel during the interval.
Alain Prost brought a four point lead with him in the Driver's Championship, following his victory at Spa, with Nelson Piquet now a point ahead of Patrick Tambay for second. Keke Rosberg was now twelve points behind the Frenchman, with John Watson still in the top five despite his rather hit or miss start tp the season. In the Constructor's Championship, and remained locked together on 24 points, although the reliability of and pure pace of meant that were beginning to fall away in the championship. Renault themselves came to Detroit with a five point lead over the tifosi, and a twelve point lead over the two British teams, while stayed within touching distance in fifth, 21 points their return on a so-so start to the season.
==Entry List==
The full entry list for the is shown below:
No.	Driver 	Entrant 	Constructor	Chassis	Engine	Model 	Tyre
1 	Keke Rosberg 	TAG Williams Racing Team 	 	FW08C 	 	DFV V8 3.0 	
2 	Jacques Laffite 	TAG Williams Racing Team 	 	FW08C 	 	DFV V8 3.0 	
3 	Michele Alboreto 	Benetton Tyrrell Team 	 	011B 	 	DFV V8 3.0 	
4 	Danny Sullivan 	Benetton Tyrrell Team 	 	011B 	 	DFV V8 3.0 	
5 	Nelson Piquet 	Fila Sport 	 	BT52 	 	M12/13 L4t 1.5	
6 	Riccardo Patrese 	Fila Sport 	 	BT52 	 	M12/13 L4t 1.5	
7 	John Watson 	Marlboro McLaren International	 	MP4/1C 	 	DFV V8 3.0 	
8 	Niki Lauda 	Marlboro McLaren International	 	MP4/1C 	 	DFV V8 3.0 	
9 	Manfred Winkelhock	Team ATS 	 	D6 	 	M12/13 L4t 1.5	
11 	Elio de Angelis 	John Player Team Lotus 	 	93T 	 	EF1 V6t 1.5 	
12 	Nigel Mansell 	John Player Team Lotus 	 	92 	 	DFV V8 3.0 	
15 	Alain Prost 	Equipe Renault Elf 	 	RE40 	 	EF1 V6t 1.5 	
16 	Eddie Cheever 	Equipe Renault Elf 	 	RE40 	 	EF1 V6t 1.5 	
22 	Andrea de Cesaris 	Marlboro Team Alfa Romeo 	 	183T 	 	890T V8t 1.5 	
23 	Mauro Baldi 	Marlboro Team Alfa Romeo 	 	183T 	 	890T V8t 1.5 	
25 	Jean-Pierre Jarier	Equipe Ligier Gitanes 	 	JS21 	 	DFV V8 3.0 	
26 	Raul Boesel 	Equipe Ligier Gitanes 	 	JS21 	 	DFV V8 3.0 	
27 	Patrick Tambay 	Scuderia Ferrari SpA SEFAC 	 	126C2B 	 	021 V6t 1.5 	
28 	René Arnoux 	Scuderia Ferrari SpA SEFAC 	 	126C2B 	 	021 V6t 1.5 	
29 	Marc Surer 	Arrows Racing Team 	 	A6 	 	DFV V8 3.0 	
30 	Thierry Boutsen 	Arrows Racing Team 	 	A6 	 	DFV V8 3.0 	
31 	Corrado Fabi 	Osella Squadra Corse 	 	FA1D 	 	DFV V8 3.0 	
32 	Piercarlo Ghinzani	Osella Squadra Corse 	 	FA1E 	 	1260 V12 3.0 	
33 	Roberto Guerrero 	Theodore Racing Team 	 	N183 	 	DFV V8 3.0 	
34 	Johnny Cecotto 	Theodore Racing Team 	 	N183 	 	DFV V8 3.0 	
35 	Derek Warwick 	Candy Toleman Motorsport 	 	TG183B 	 	415T L4t 1.5 	
36 	Bruno Giacomelli 	Candy Toleman Motorsport 	 	TG183B 	 	415T L4t 1.5 	
==Practice Overview==
Practice was held on a damp and dirty track, with times around 20 to 30 seconds down on the true pace of the drivers.http://en.wikipedia.org/wiki/1983_Detroit_Grand_Prix Nigel Mansell and Jean-Pierre Jarier were the standout performers, however, with their lowly Ford Cosworth powered cars topping the times by almost a second over the nearest turbo powered car of Andrea de Cesaris. Keke Rosberg was the only man to beat them, with the World Champion the sole man to get into the 2:06 zone.
==Qualifying==
The impressive pace of the Cosworth contingent was not to last, however, as a drier and cleaner track played host to qualifying. Rene Arnoux benefitted the most, taking his second pole position of the season in the number 28 Ferrari, setting a time two tenths quicker than Nelson Piquet. Patrick Tambay put the lead Ferrari onto third (although was over a second slower than his team mate), while Elio de Angelis claimed his best qualifying position all season in the Renault turbo supported Lotus, taking fourth. Marc Surer was next, taking fifth and the honour of qualifying as best of the normally aspirated cars, with Michele Alboreto alongside him.
With only 27 entrants, only Corrado Fabi was eliminated in qualifying, the first time he had been beaten by team mate Piercarlo Ghinzani since the latter had had an Alfa Romeo V12 fitted to his Osella. Ghinzani would start from 24th, ahead of the Alfa Romeo built car of Mauro Baldi, while Johnny Cecotto completed the grid in his Theodore, almost seven seconds slower than Arnoux . 
===Qualifying Results===
Pos.	No.	Driver 	Constructor	Time 	Time
Pos.	No.	Driver 	Constructor	Q1 	Q2
1 	28 	René Arnoux 	 	2:08.851	1:44.734
2 	5 	Nelson Piquet 	 	2:11.506	1:44.933
3 	27 	Patrick Tambay 	 	2:10.994	1:45.991
4 	11 	Elio de Angelis 	 	2:09.601	1:46.258
5 	29 	Marc Surer 	 	2:09.292	1:46.745
6 	3 	Michele Alboreto 	 	2:08.198	1:47.013
7 	16 	Eddie Cheever 	 	2:08.418	1:47.334
8 	22 	Andrea de Cesaris 	 	2:08.034	1:47.453
9 	35 	Derek Warwick 	 	No Time 	1:47.534
10 	30 	Thierry Boutsen 	 	2:11.107	1:47.586
11 	33 	Roberto Guerrero 	 	2:08.496	1:47.701
12 	1 	Keke Rosberg 	 	2:06.382	1:47.728
13 	15 	Alain Prost 	 	2:15.731	1:47.855
14 	12 	Nigel Mansell 	 	2:07.792	1:48.395
15 	6 	Riccardo Patrese 	 	2:17.489	1:48.537
16 	4 	Danny Sullivan 	 	2:18.758	1:48.648
17 	36 	Bruno Giacomelli 	 	2:13.205	1:48.785
18 	8 	Niki Lauda 	 	2:09.019	1:48.992
19 	25 	Jean-Pierre Jarier	 	2:07.652	1:48.994
20 	2 	Jacques Laffite 	 	2:13.080	1:49.245
21 	7 	John Watson 	 	2:10.632	1:49.250
22 	9 	Manfred Winkelhock	 	2:12.092	1:49.466
23 	26 	Raul Boesel 	 	2:12.164	1:49.540
24 	32 	Piercarlo Ghinzani	 	2:15.556	1:49.885
25 	23 	Mauro Baldi 	 	2:11.169	1:49.916
26 	34 	Johnny Cecotto 	 	2:14.547	1:51.709
DNQ 	31 	Corrado Fabi 	 	2:15.085	1:53.516
==Race==
There were no changes to the starting grid before the start of the race, with 70,000 people arriving to watch the battle around Motor City.
===Report===
The race distance was dropped from 61 to 60 laps after Andrea de Cesaris signalled to the marshalls to abort the original start, having stalled before the lights went out. The grid reformed after a second parade lap, with de Cesaris back up and running, and the usual start procedure followed. As the lights went out, Patrick Tambay stalled, leaving him stranded in third as cars flashed eitherside. His luck ran out, however, as he was towed off of the track and into retirement, despite his hopes for a push start.
Tambay's immediate demise had little effect on the starting order, as Arnoux led from Piquet, Elio de Angelis, de Cesaris, Michele Alboreto and Derek Warwick. It was not long, however, before the third placed Lotus 93T of de Angelis pulled off, a transmission problem ending his race on lap six. Eddie Cheever had already joined Tambay and Piercarlo Ghinzani (overheating) on the sidelines with a distributor issue. As their dramas emerged, Keke Rosberg began to swing his way into the points, taking Warwick for sixth before attempting to keep Alboreto in his sights.
Rosberg soon brushed aside Alboreto and de Cesaris for third, before setting a series of stunning laps in an attempt to catch the quickly disappearing duo of Piquet and Arnoux. By lap 20, the Finn had caught the Brazilian, making his move for second as the pair came into the final sector. The Williams nosed ahead of the Brabham into the final corner, and Rosberg was second, with Arnoux now the only man preventing the Finn from taking the lead as the pitstops approached.
On lap 29, Arnoux swept into the pits, having built a thirty second lead in the time that Rosberg had been in second. A quick stop saw him back out into the lead, ahead of Piquet, Alboreto and Jacques Laffite, none of whom had stopped. Rosberg stopped on the same lap, but a slower stop meant he dropped behind the long running trio. Within two laps, however, the situation had changed, as Arnoux crawled to a stop with an electrical failure, while Laffite came into the pits for fuel and tyres.
Piquet now led from Alboreto (the pair deciding not to stop at all during the race), with Rosberg a distant (but closing) third. John Watson was another to opt out of stopping, and as a result was now in fourth (producing another heroic display from the back in the US), with Laffite emerging in fifth and the fresh faced Thierry Boutsen in sixth. The order remained unchanged for the next twenty laps, although Rosberg began to close in on the leaders.
Then on the 51st lap, Piquet came into the pits, his left rear tyre shredded to pieces after a puncture in teh second sector. Alboreto went into the lead, with Rosberg now second, dragging the impressive Watson along in his wake. Piquet emerged back in a lonely fourth place, with Laffite unable to challenge. Nigel Mansell, meanwhile, crept into the points after overtaking Boutsen while Piquet was having his drama.
The order remained unchanged until the end, meaning Alboreto claimed the second win of his Formula One career, and one which would also be the last for Tyrrell. Rosberg and Watson (just over a second behind the Finn) completed the podium, with Piquet, Laffite and Mansell completing the point scorers.
===Results===
Pos.	No.	Driver 	Constructor	Laps	Time/Retired	Grid	Pts
1 	3 	Michele Alboreto 	 	60 	1:50:53.669 	6 	9
2 	1 	Keke Rosberg 	 	60 	+7.702s 	12 	6
3 	7 	John Watson 	 	60 	+9.283s 	21 	4
4 	5 	Nelson Piquet 	 	60 	+1:12.185 	2 	3
5 	2 	Jacques Laffite 	 	60 	+1:32.603 	20 	2
6 	12 	Nigel Mansell 	 	59 	+1 lap 	14 	1
7 	30 	Thierry Boutsen 	 	59 	+1 lap 	10 	
8 	15 	Alain Prost 	 	59 	+1 lap 	13 	
9 	36 	Bruno Giacomelli 	 	59 	+1 lap 	17 	
10 	26 	Raul Boesel 	 	58 	+2 laps 	23 	
11 	29 	Marc Surer 	 	58 	+2 laps 	5 	
12 	23 	Mauro Baldi 	 	56 	+4 laps 	25 	
Ret 	8 	Niki Lauda 	 	49 	Suspension 	18 	
NC 	33 	Roberto Guerrero 	 	38 	+22 laps 	11 	
Ret 	34 	Johnny Cecotto 	 	34 	Gearbox 	26 	
Ret 	22 	Andrea de Cesaris 	 	33 	Turbo 	8 	
Ret 	28 	René Arnoux 	 	31 	Electrical 	1 	
Ret 	4 	Danny Sullivan 	 	30 	Electrical 	16 	
Ret 	25 	Jean-Pierre Jarier	 	29 	Wheel 	19 	
Ret 	9 	Manfred Winkelhock	 	26 	Accident 	22 	
Ret 	35 	Derek Warwick 	 	25 	Engine 	9 	
Ret 	6 	Riccardo Patrese 	 	24 	Brakes 	15 	
Ret 	11 	Elio de Angelis 	 	5 	Gearbox 	4 	
Ret 	16 	Eddie Cheever 	 	4 	Distributor 	7 	
Ret 	32 	Piercarlo Ghinzani	 	4 	Overheating 	24 	
Ret 	27 	Patrick Tambay 	 	0 	Stalled 	3 	
==Milestones==
*Second victory for Michele Alboreto.
*23rd and final victory for Tyrrell.
*155th victory for a Cosworth engine.
**155th and final victory for the Cosworth DFV engine.
**Last non-turbo victory until the 1989 Brazilian Grand Prix.
==Standings after race==
Alain Prost's poor day meant that he left Detroit with only one point seperating him from Nelson Piquet, while Keke Rosberg closed to within a point of Patrick Tambay for third. John Watson's podium meant he retained fifth place, while Alboreto's victory ensured he took his first points of the season, leaping into the top ten in the championship.
With both Ferrari and Renault failing to score, the biggest movers in the Constructor's Championship were Williams, whom overtook the tifosi to sit four points behind the French manufacturer. Brabham also closed the gap to the leaders, now on 27 points, while McLaren kept within touching distance, two points behind the BMW powered Brabhams.
1983 Drivers' World Championship	1983 Drivers' World Championship	1983 Drivers' World Championship
Pos. 	Driver 	Pts
1 	Alain Prost 	28
2 	Nelson Piquet 	27
3 	Patrick Tambay 	23
4 	Keke Rosberg 	22
5 	John Watson 	15
Only the top 5 drivers are displayed.
1983 Constructors' World Championship	1983 Constructors' World Championship	1983 Constructors' World Championship
Pos. 	Team 	Pts
1 	 	36
2 	 	32
3 	 	31
4 	 	27
5 	 	25
Only the top 5 constructors are displayed.
==References==
Category:Grand Prix articles
Category:Detroit Grand Prix
Category:1983 Grands Prix
Category:Formula One races in the United States