1984 Canadian Grand Prix

The 1984 Canadian Grand Prix, officially known as the XXIII Grand Prix du Canada, was the seventh round of the FIA Formula One World Championship, staged at the Circuit Gilles Villeneuve in Quebec, Canada, on the 17 June 1984.'Canadian GP, 1984', grandprix.com, (Inside F1 Inc., 2015), http://www.grandprix.com/gpe/rr395.html, (Accessed 04/03/2019) The race would see Nelson Piquet claim his fourth career Grand Chelem at the wheel of a , in spite of failing to score all season.
Indeed, Piquet's miserable form in 1984 had nothing to do with his outright speed, for the Brazilian swept to his third pole of the season during qualifying. Championship leader Alain Prost was his closest challenger, grabbing second ahead of Elio de Angelis, while Derek Warwick put the lone into fourth ahead of the two s.
Piquet duly aced the start to surge into an early lead, although Prost would briefly challenge the Brazilian into the first corner. The rest of the field thundered through in their wake, with de Angelis leading the rest of the hoard.
Piquet would instantly grab a five second lead in the early stages, before easing off knowing that the outcome of his race was likely to be decided by his BMW engine rather than his opposition. Behind, Prost would settle into a comfortable second, while de Angelis fought with Warwick, the two Ferraris, teammate Nigel Mansell and Niki Lauda.
Indeed, de Angelis' stubborn defence allowed Lauda to pick his way up the order, with the Austrian's McLaren eventually making its way through to third. He duly went sprinting off after teammate Prost, with Piquet still cruising around at the head of the field.
It was only when Lauda vaulted past teammate Prost that Piquet finally pushed on again, with a series of fastest laps taking him out of the Austrian danger zone. He duly eased his pace again as the final laps ticked away, with Lauda inching closer as Prost fell away.
With that the race was run, with Piquet sweeping home to claim victory three seconds clear of Lauda across the line. Prost was over a minute and a half behind in third, with de Angelis a lap down in fourth, ahead of René Arnoux and Mansell.
The results of the race meant that Prost's lead in the Championship over teammate Lauda had been reduced to 8.5 points, with half the season still to go. Piquet, meanwhile, would end the race with burns to his feet, the result of a new oil cooler mounted in the nose of his Brabham.
==Background==
The annual trip to Montreal and the Canadian Grand Prix would be made in mid-June in , with the recently renamed Circuit Gilles Villeneuve playing host to the FIA Formula One World Championship once again. Indeed, the ever popular circuit, named for Canada's racing hero Gilles Villeneuve, was set to draw in another record crowd, although the future of the race was in doubt. Indeed, FOCA and Bernie Ecclestone were reportedly asking for an even bigger fee to bring F1 back to Canada for , with the local government unwilling to fund the event for those costs.
===Brabham Battles===
However, a more immediate concern for Mr Ecclestone was the form of his team, for had yet to score a point in . Indeed, lead driver Nelson Piquet was looking increasingly frustrated, with all of his, and teammates Teo and Corrado Fabi's retirements coming from a single source: the engine. However, with the Bavarian manufacturer busy with their own projects, it was down to the BT53s designer Gordon Murray to sort the issue, with the South African designer instructed to de-stress the engine.
Murray's solution ahead of the trip to Canada was to install another oil cooler to the cars, this one located in the nose. The additional cooling would, it was hoped, would prevent the turbocharger from getting too hot, which was the most vulnerable part of the BMW M12/13 1.5 L4t according to recent races. There was also some minor remoulding of the bodywork to channel more air into the primary radiators in the sidepods, with Piquet and Corrado Fabi getting try the modifications in practice ahead of the race.
===The Le Mans Legacy===
Elsewhere, two teams were forced to revise their driver line-ups just before the weekend, for the legendary 24 Hours of Le Mans would take place on the same weekend as the race. The two drivers skipping the race would be Jonathan Palmer of , who was to be replaced by Mike Thackwell, and Mauro Baldi, whose was handed to Huub Rothengatter on the eve of practice. Indeed, both Thackwell and Rothengatter were considered to be pay drivers, with Thackwell having last driven an F1 car in for , while Rothengatter's last run in any racing car of note was back in 1981.
===Evolving Entries===
Elsewhere, arrived with an vastly updated car for their lead driver Keke Rosberg, dubbed the FW09B. The updated car, which sported revised rear suspension, MP4/2 style bodywork and a new setup on the front suspension, was intended to eliminate the horrendous understeer that both Rosberg and Jacques Laffite had been battling since the start of the season. In truth the Williams squad viewed the update as a temporary solution, with work on the all-carbon-fibre FW10, again penned by Patrick Head, well under way.
Elsewhere were evaluating their future in F1 after their miserable start to the season, with the impressively inefficient Alfa V8 engine costing the team dearly. Indeed, the combined efforts of Eddie Cheever and Riccardo Patrese had resulted in just six points for the Italian manufacturer, with the pair both running out of fuel on multiple occasions. Ultimately, however, it was team boss Carlo Chiti who took the fall, with the Italian replaced by former Lancia engineer Giovanni Tonti. Furthermore, the less-than-clear future of Alfa Romeo called into question the long-term future of , who relied on Alfa engines to power their lone entry of Piercarlo Ghinzani
Elsewhere, arrived in dire straights, for Manfred Winkelhock only had one car to complete the three race North American tour having crashed the D6 heavily in Monte Carlo. , meanwhile, had only one BMW engined car for their pair of Marc Surer and Thierry Boutsen, which would have the rear end cut off to improve cooling for the BMW unit. Ultimately it was Boutsen who was listed as the pilot of the A7, leaving Surer to pilot the under-powered engined car once again.
Indeed, Surer looked set to battle with the two s for positions at the back of the grid, in spite of Stefan Bellof's stunning podium last time out in Monte Carlo.< Martin Brundle, meanwhile, was passed fit to race in Canada after his heavy crash during qualifying at the Principality, with the Brit determined to match the German's exploits. The Tyrrell team were at least confident of making it onto the grid in Canada, with the reduced entry list ensuring that all 26 entrants would get a grid slot.
The reason for the reduced entry list was the fact that Patrick Tambay had not been replaced at , in spite of the fact that he had been left with a fractured leg in Monaco. That left teammate Derek Warwick to lead the factory charge alone, although the Brit was aided by a revised cooling and reheat system, designed to keep vital fluids such as the fuel and oil at optimal temperature. This system had also been installed in the customer and entries, whom fielded Elio de Angelis and Nigel Mansell, and Andrea de Cesaris and François Hesnault respectively.
Elsewhere, arrived looking for another strong result, although lead driver Ayrton Senna was still furious at having been "robbed" of victory in Monte Carlo. His teammate Johnny Cecotto, meanwhile, would inherit the Brazilian's old TG184 ahead of the race, with the small British squad managing to build a second car ahead of the trip across the Atlantic. They were, as ever, the strongest of the Hart engined cars, with RAM fielding Phillippe Alliot alongside the aforementioned Thackwell, while Spirit employed Rothengatter.
Completing the entry list would be the and teams, which landed in North America with no fresh concerns. It was the former who arrived as the favourites, with Alain Prost and Niki Lauda having looked imperious through the opening third of the season. Ferrari, meanwhile, were battling against internal politics once again, the latest incident caused by Michele Alboreto after the Italian and a journalist came to blows about the Italian racer's move to Switzerland. His teammate René Arnoux, meanwhile, set about negotiating his contract for 1985, knowing that it was he, not Alboreto, who was likely to be dumped by the Italian team at the end of the season.
===Championship Changes===
Into the Championship and victory in Monte Carlo, in spite of the half-points awarded due to the conditions, had ensured that Prost retained command, and re-established his de-facto one race advantage. Indeed, Lauda arrived in Canada 10.5 points behind his teammate in the title hunt, with Arnoux a further three behind after being re-classified in third. Warwick and de Angelis completed the top five, level on thirteen, while Senna had leapt into the top ten with his maiden podium finish.
McLaren-TAG, meanwhile, had extended their lead in the Constructors Championship, moving 22 points clear of Ferrari on 46.5. The Italian team were also running with a half a point, 24.5 their total, with Renault having lost some ground in third. Behind, Team Lotus-Renault and Williams-Honda completed the top five, while Toleman-Hart had climbed to seventh.
===Entry List===
The full entry list for the is shown below:
No. 	Driver 	Entrant 	Constructor 	Chassis 	Engine 	Model 	Tyre
1 	Nelson Piquet 	MRD International 	 	BT53 	 	M12/13 1.5 L4t 	
2 	Corrado Fabi 	MRD International 	 	BT53 	 	M12/13 1.5 L4t 	
3 	Martin Brundle 	Tyrrell Racing Organisation 	 	012 	 	DFY 3.0 V8 	
4 	Stefan Bellof 	Tyrrell Racing Organisation 	 	012 	 	DFY 3.0 V8 	
5 	Jacques Laffite 	Williams Grand Prix Engineering 	 	FW09 	 	RA163E 1.5 V6t 	
6 	Keke Rosberg 	Williams Grand Prix Engineering 	 	FW09B 	 	RA163E 1.5 V6t 	
7 	Alain Prost 	Marlboro McLaren International 	 	MP4/2 	 	TTE PO1 1.5 V6t 	
8 	Niki Lauda 	Marlboro McLaren International 	 	MP4/2 	 	TTE PO1 1.5 V6t 	
9 	Philippe Alliot 	Skoal Bandit Formula 1 Team 	 	02 	 	415T 1.5 L4t 	
10 	Mike Thackwell 	Skoal Bandit Formula 1 Team 	 	02 	 	415T 1.5 L4t 	
11 	Elio de Angelis 	John Player Team Lotus 	 	95T 	 	EF4B 1.5 V6t 	
12 	Nigel Mansell 	John Player Team Lotus 	 	95T 	 	EF4B 1.5 V6t 	
14 	Manfred Winkelhock 	Team ATS 	 	D7 	 	M12/13 1.5 L4t 	
15 	Patrick Tambay 	Equipe Renault Elf 	 	RE50 	 	EF4 1.5 V6t 	
16 	Derek Warwick 	Equipe Renault Elf 	 	RE50 	 	EF4 1.5 V6t 	
17 	Marc Surer 	Barclay Nordica Arrows BMW 	 	A6 	 	DFV 3.0 V8 	
18 	Thierry Boutsen 	Barclay Nordica Arrows BMW 	 	A7 	 	M12/13 1.5 L4t 	
19 	Ayrton Senna 	Toleman Group Motorsport 	 	TG184 	 	415T 1.5 L4t 	
20 	Johnny Cecotto 	Toleman Group Motorsport 	 	TG184 	 	415T 1.5 L4t 	
21* 	Huub Rothengatter Mauro Baldi 	Spirit Racing 	 	101B 	 	415T 1.5 L4t 	
22 	Riccardo Patrese 	Benetton Team Alfa Romeo 	 	184T 	 	890T 1.5 V8t 	
23 	Eddie Cheever 	Benetton Team Alfa Romeo 	 	184T 	 	890T 1.5 V8t 	
24 	Piercarlo Ghinzani 	Osella Squadra Corse 	 	FA1F 	 	890T 1.5 V8t 	
25 	François Hesnault 	Ligier Loto 	 	JS23 	 	EF4 1.5 V6t 	
26 	Andrea de Cesaris 	Ligier Loto 	 	JS23 	 	EF4 1.5 V6t 	
27 	Michele Alboreto 	Scuderia Ferrari SpA SEFAC 	 	126C4 	 	031 1.5 V6t 	
28 	René Arnoux 	Scuderia Ferrari SpA SEFAC 	 	126C4 	 	031 1.5 V6t 	
Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1984/canada/engages.aspx, (Accessed 04/03/2019)
** Both Baldi and Rothengatter were listed as the driver of the #21 car.
==Practice Overview==
==Qualifying==
Qualifying would be staged across Friday and Saturday ahead of the race on Sunday, with two hour and a half long sessions scheduled.A.H., 'Canadian Grand Prix', motorsportmagazine.com, (Motor Sport Magazine, 01/07/1984), https://www.motorsportmagazine.com/archive/article/july-1984/23/canadian-grand-prix, (Accessed 05/03/2019) Those sessions would be staged on the afternoons of each day, leaving the morning sessions free to allow teams to practice for the race, with all 26 entries guaranteed a grid slot. As for a target time the circuit record was in the sights of the top teams, with anything under Didier Pironi's pole winning time of 1:27.509 from 1982 likely to put a driver at the head of the field.
===Friday Qualifying===
The standout driver from Friday's qualifying session would be Championship leader Alain Prost, who would shatter the circuit record towards the end of the day with his . Indeed, the Frenchman would record a 1:26.477, although both himself and teammate Niki Lauda were concerned about tyre wear, with the latter largely focusing on race practice during the session. Second on the provisional grid therefore went to Elio de Angelis in the , with Nelson Piquet a fraction behind in the .
However, de Angelis would lose a lot of time during the session with mechanical issues, with a similar fate befalling teammate Nigel Mansell. Indeed, all of the Renault teams were in trouble, with suffering two engine failures, while Derek Warwick was forced to borrow absent teammate Patrick Tambay's car as his engine blew. Other stragglers were , with the updated FW09B proving no better than its understeer plagued predecessor, while the three engined cars were all off the pace, only ahead of the debutantes Huub Rothengatter and Mike Thackwell.
===Saturday Qualifying===
Warmer temperatures on Saturday, combined with an evening of repair and setup work, ensured that the pace improved, although there would be no real fight for pole. Indeed, Piquet would settle the issue midway through the session, dancing his BMW powered Brabham around the Circuit Gilles Villeneuve in 1:25.442, the only man to break the 1:26.000 barrier. Indeed, even Prost failed to dip into the 1:25.000s, ending the afternoon in second with a 1:26.198, while teammate Lauda only managed a 1:27.392. Third would go to de Angelis, who battled another series of engine issues to record a 1:26.306, with Warwick completing the second row in the factory Renault.
The only other drivers in the 1:26.000s were the two s, with Michele Alboreto and René Arnoux qualifying sixth and fifth respectively. Mansell was next, having trashed a third engine in pursuit of his 1:27.246, with the Brit sharing the fourth row with Lauda. The impressive rookie Ayrton Senna claimed ninth, in spite of the fact that it was his first trip to Canada, while Andrea de Cesaris made it four Renault engined cars in the top ten as he claimed a 1:27.922 in the Ligier.
Indeed, the fact that Renault had got four cars in the top end of the field was nothing short of a miracle, for a grand total of eleven Renault V6ts had been completely trashed during practice and qualifying. Elsewhere, Williams still lacked any sort of pace, with Keke Rosberg and the new FW09B only just beating Jacques Laffite in the original FW09, with both complaining of understeer. At the back, meanwhile, Martin Brundle was best of the engined drivers in twenty-first, while Rothengatter and Thackwell were kept off the bottom of the timesheets by Philippe Alliot.
===Qualifying Results===
The full qualifying results for the are outlined below:
Pos. 	No. 	Driver 	Constructor 	Time 	Time 	Gap
Pos. 	No. 	Driver 	Constructor 	Q1 	Q2 	Gap
1 	1 	Nelson Piquet 	 	1:27.154 	1:25.442 	—
2 	7 	Alain Prost 	 	1:26.477 	1:26.198 	+0.756s
3 	11 	Elio de Angelis 	 	1:27.139 	1:26.306 	+0.864s
4 	16 	Derek Warwick 	 	1:29.682 	1:26.420 	+0.978s
5 	28 	René Arnoux 	 	1:27.917 	1:26.549 	+1.107s
6 	27 	Michele Alboreto 	 	1:28.604 	1:26.764 	+1.322s
7 	12 	Nigel Mansell 	 	1:28.277 	1:27.246 	+1.804s
8 	8 	Niki Lauda 	 	1:28.578 	1:27.392 	+1.950s
9 	19 	Ayrton Senna 	 	1:29.282 	1:27.448 	+2.006s
10 	26 	Andrea de Cesaris 	 	1:29.618 	1:27.922 	+2.480s
11 	23 	Eddie Cheever 	 	1:29.418 	1:28.032 	+2.590s
12 	14 	Manfred Winkelhock 	 	1:32.311 	1:28.909 	+3.467s
13 	25 	François Hesnault 	 	1:31.146 	1:29.187 	+3.745s
14 	22 	Riccardo Patrese 	 	1:29.205 	1:30.064 	+3.763s
15 	6 	Keke Rosberg 	 	1:29.423 	1:29.284 	+3.842s
16 	2 	Corrado Fabi 	 	1:30.831 	1:29.764 	+4.322s
17 	5 	Jacques Laffite 	 	1:30.115 	1:29.915 	+4.473s
18 	18 	Thierry Boutsen 	 	1:30.887 	1:30.073 	+4.631s
19 	24 	Piercarlo Ghinzani 	 	1:32.189 	1:30.918 	+5.476s
20 	20 	Johnny Cecotto 	 	1:34.731 	1:31.459 	+6.017s
21 	3 	Martin Brundle 	 	1:33.945 	1:31.785 	+6.343s
22 	4 	Stefan Bellof 	 	1:34.309 	1:31.797 	+6.355s
23 	17 	Marc Surer 	 	1:33.014 	1:32.756 	+7.314s
24 	21 	Huub Rothengatter 	 	1:35.217 	1:32.920 	+7.478s
25 	10 	Mike Thackwell 	 	1:34.921 	1:33.730 	+8.288s
26 	9 	Philippe Alliot 	 	1:35.286 	1:36.900 	+9.844s
WD* 	15 	Patrick Tambay 	 	Withdrawn 	Withdrawn 	Withdrawn
WD† 	21 	Mauro Baldi 	 	Withdrawn 	Withdrawn 	Withdrawn
Source:'Canada 1984: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/qualification.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/qualification.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/qualification.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/qualification.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/qualification.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/qualification.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/qualification.aspx, (Accessed 04/03/2019)
*T Indicates a driver used their test/spare car to set their best time in that session.
*Bold indicates a driver's best/qualifying time.
** Tambay was withdrawn due to injuries sustained at the 1984 Monaco Grand Prix.
*† Baldi's entry was withdrawn as he was racing at the 24 Hours of Le Mans.
===Grid===
==Race==
It proved to be a bright warm day ahead of the Canadian Grand Prix of , with the sun beating down on the Circuit Gilles Villeneuve throughout the day. The morning warm-up would result in only one incident of note, Nigel Mansell seeing the twelfth engine of the weekend expire in the back of his 95T. Fortunately the Ethel based squad were able to get a fresh engine in the back of the car in time for the race, with all 26 qualifiers lining up without issue for the start.
===Report===
Off the line it was advantage Nelson Piquet from pole, although the Brazilian was powerless to prevent Alain Prost edging ahead as the Frenchman's turbo spooled up before his unit. Indeed, the 's turbo had so much lag that Piquet found himself battling with Elio de Angelis into the first corner, although the Brazilian easily swatted the Italian's lunge aside. The rest of the field piled in behind the two s, which had got the jump on Derek Warwick off the line.
Piquet would go on the offensive during the opening tour, and duly sent his Brabham diving inside Prost's at turn nine. Prost tried to hang on through the exit of the hairpin, only to conclude that his engine had lost power as the Brabham streaked ahead. Fortunately for him de Angelis was having his own troubles, with the Ferraris of Michele Alboreto and René Arnoux working together to pass the Lotus at the same corner.
With that Piquet was clear to build a lead at the head of the field, and duly completed the opening tour a second clear of Prost. His lead continued to grow during the early stages, with the Frenchman himself able to slowly inch away from the two Ferraris of Alboreto and Arnoux. They also established a healthy gap over de Angelis, who instead had Warwick, Niki Lauda, Ayrton Senna and Andrea de Cesaris on his tail.
The gap between the top four would fluctuate, however, with Piquet already feeling some discomfort due to the new radiator in the nose of his Brabham. As such, the Brazilian felt the need to ease off his brakes from time to time, allowing Prost, Alboreto and Arnoux to close onto the back of him every few laps. Indeed, with ten laps gone there was just four seconds covering the top four, with the entire group being caught steadily by Lauda.
Indeed, Lauda had benefited massively from de Angelis' lack of pace early on, picking his way past Warwick and the Italian to move into fifth. That would become fourth when Alboreto's Ferrari suddenly spluttered to a stop at the back of the circuit, an electrical failure ending the Italian's race on lap eleven. However, the Austrian still had thirteen seconds to make up to catch the lead group after Alboerto's demise, with the Italian's disappearance allowing Prost and Arnoux to push harder against Piquet.
Arnoux would steadily fall away from the lead group, however, with the Frenchman beginning to lose grip from his soft Goodyear tyres. He duly stopped on lap fourteen for a change, before blasting out of the pits in seventh, just behind Ayrton Senna. Elsewhere, Keke Rosberg was making an impressive bid for the points, passing Mansell and de Cesaris with ease, while Prost closed right onto the tail of Piquet now that Arnoux could cause him no further harm.
Equipped with fresh rubber, Arnoux was soon charging back towards the podium, easing past Senna, de Angelis and Warwick with ease with identical dives at the second hairpin. However, as the Frenchman claimed fourth away from Warwick, Piquet was able to break away from Prost, the Brazilian managing to find gaps in a queue of traffic headed by his teammate that the Frenchman simply could not. Indeed, in the space of five laps, which saw Piquet and Prost pass Corrado Fabi, Thierry Boutsen, Johnny Cecotto, Riccardo Patrese and Martin Brundle, the Brazilian had built a five second lead.
Furthermore, Lauda would be even quicker through the group, and duly used his advantage to halve the gap between himself and the leaders. Arnoux' meanwhile, would begin to lose the edge from his fresh tyres and duly lost pace, while the two engined would disappear within a lap of each other with different engine issues. Elsewhere, Mike Thackwell was out after a turbo failure, Huub Rothengatter was in and out of the pits with a gearbox issue, and de Cesaris had to stop for fresh tyres.
Half distance came and went with little change out front, although both Piquet and Prost were having issues as the Brazilian inched away from the Frenchman. Indeed, the Brazilian's feet were beginning to cook due to the temperatures in the foot-well of his cockpit, with the oil cooler continuing to build heat at the front of the car. Prost, meanwhile, was losing more and more power from his TAG engine, allowing Lauda to loom ever closer in his mirrors.
Behind, Arnoux's bid for the podium was to come to an ignominious end, the Frenchman having Riccardo Patrese bounce off his Ferrari on lap 38. Indeed, while Arnoux escaped without any major damage to his car, the contact had done enough to knock his suspension and steering out of alignment. He subsequently lost pace as a result as he nursed his car along, while Patrese had to climb out of his ruined which had been pitched into the barriers.
With Arnoux's attack now blunted Prost finally allowed Lauda to pass for second, knowing that he would finish third if he made it to the flag. The Austrian duly shot off after Piquet, who had built a ten second lead as Prost's engine faltered, with Prost quickly falling off the back of his teammate. Behind, Arnoux's pace was deteriorating as he battled his wounded Ferrari, while the two Loti were getting physical for sixth, with Mansell throwing lunge after lunge at de Angelis to try and grab the position.
Indeed, Mansell would only manage to get past de Angelis when Piquet and Lauda came to lap the duo, with the Brit managing to hold up Lauda in the process. With twenty laps left the gap between the leaders stood a six seconds, with Prost a distance third and complaining of a gearbox issue. Arnoux, meanwhile, was losing even more time with a cracked exhaust, allowing Warwick and later Mansell to pass him with relative ease.
Mansell would soon inherit fourth when Warwick stopped in the pits with a suspected puncture, although the stopped for a second time a few laps later to have its suspension looked at. However, Mansell was not having it all his own way, for a loss of second gear saw his pace completely collapse, allowing de Angelis, now past Arnoux, to catch and pass with no real defence. He would also be passed by Eddie Cheever in the lone Alfa Romeo in the closing stages, although the American racer would run out of fuel a long before the chequered flag.
Out front, meanwhile, it would be torturous final few laps for Piquet, whose feet were literally cooking in the nose of his Brabham. Indeed, had he not been so close to claiming victory, the Brazilian would have likely retired his car much earlier in the race. Yet, with one lap to go it seemed as if the race was won, for Lauda was too far back to challenge the Brazilian.
Indeed, Piquet duly cruised home on the final lap to claim victory, although the Brazilian would almost pass out due to the pain from his right foot as he climbed out of his cockpit. Lauda was a satisfied second, two and a half seconds off Piquet, while Prost limped home in third as the last man on the lead lap. de Angelis was next in a comfortable fourth, while Arnoux out-limped Mansell on the final lap to smuggle fifth away from the Brit at the line.
===Results===
The full results for the are outlined below:
Pos. 	No. 	Driver 	Constructor 	Laps 	Time/Retired 	Grid 	Points
1 	1 	Nelson Piquet 	 	70 	1:46:23.748 	1 	9
2 	8 	Niki Lauda 	 	70 	+2.612s 	8 	6
3 	7 	Alain Prost 	 	70 	+1:28.032 	2 	4
4 	11 	Elio de Angelis 	 	69 	+1 Lap 	3 	3
5 	28 	René Arnoux 	 	68 	+2 Laps 	5 	2
6 	12 	Nigel Mansell 	 	68 	+2 Laps 	7 	1
7 	19 	Ayrton Senna 	 	68 	+2 Laps 	9 	
8 	14 	Manfred Winkelhock 	 	68 	+2 Laps 	12 	
9 	20 	Johnny Cecotto 	 	68 	+2 Laps 	20 	
10 	9 	Phillippe Alliot 	 	65 	+5 Laps 	26 	
11* 	23 	Eddie Cheever 	 	63 	Out of fuel 	11 	
DSQ† 	3 	Martin Brundle 	 	68 	Disqualified 	21 	
Ret 	17 	Marc Surer 	 	59 	Engine 	23 	
Ret 	16 	Derek Warwick 	 	57 	Chassis 	4 	
NC‡ 	21 	Huub Rothengatter 	 	56 	+14 Laps 	24 	
DSQ† 	4 	Stefan Bellof 	 	52 	Disqualified 	22 	
Ret 	26 	Andrea de Cesaris 	 	40 	Brakes 	10 	
Ret 	2 	Corrado Fabi 	 	39 	Turbo 	16 	
Ret 	18 	Thierry Boutsen 	 	38 	Engine 	18 	
Ret 	22 	Riccardo Patrese 	 	37 	Accident 	14 	
Ret 	6 	Keke Rosberg 	 	32 	Fuel system 	15 	
Ret 	5 	Jacques Laffite 	 	31 	Turbo 	17 	
Ret 	10 	Mike Thackwell 	 	29 	Turbo 	25 	
Ret 	24 	Piercarlo Ghinzani 	 	11 	Gearbox 	19 	
Ret 	27 	Michele Alboreto 	 	10 	Engine 	6 	
Ret 	25 	François Hesnault 	 	7 	Turbo 	13 	
WD 	15 	Patrick Tambay 	 	 	 	 	
WD 	21 	Mauro Baldi 	 	 	 	 	
Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)	Source:'Canada 1984: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1984/canada/classement.aspx, (Accessed 04/03/2019)
*T Indicates a driver used their test/spare car.
** Cheever was still classified despite retiring as he had completed 90% of the race distance.
*† Brundle and Bellof were retroactively disqualified following the "ban" of the Tyrrell 012 after the 1984 Detroit Grand Prix.
*‡ Rothengatter could not be classified as he failed to complete 90% of the race distance.
==Milestones==
* Nigel Mansell made his fiftieth Grand Prix start.'7. Canada 1984', statsf1.com, (Stats F1, 2014), https://www.statsf1.com/en/1984/canada.aspx, (Accessed 04/03/2019)
* made their 200th appearance as a constructor.
* 50th entry for Michele Alboreto.
* Johnny Cecotto entered his twentieth race.
* Debut race for Huub Rothengatter.
* Nelson Piquet claimed his eleventh victory.
** It was also the Brazilian's fourth Grand Chelem.'1984 Canadian GP', chicanef1.com, (Chicane F1, 2014), http://www.chicanef1.com/racetit.pl?year=1984&gp=Canadian%20GP&r=1, (Accessed 04/03/2019)
* earned their 33rd win as a constructor.
** Engine suppliers claimed their sixth victory.
** Also the tenth fastest lap recorded using a BMW power unit.
==Standings==
Victory for Nelson Piquet saw the Brazilian streak instantly into the top ten, having been an unclassified twentieth following his miserable run of poor reliability. At the head of the field, meanwhile, it was still Alain Prost who led the charge, although teammate Niki Lauda had chipped away at his lead. The gap between the two pilots stood at 8.5 points leaving Canada, with René Arnoux an increasingly distant third.
With their two drivers leading the charge in the Drivers Championship there was little surprise that McLaren-TAG headed the Constructors battle, with a huge 30 point advantage over the rest of the field. were still their closest challengers, although they were looking over their shoulders rather than plotting the downfall of McLaren. Indeed, the factory squad, as well as engine customers had moved onto 21 points for the season, leaving them within striking distance of the Scuderia.
 
World Championship for Drivers	World Championship for Drivers	World Championship for Drivers	World Championship for Drivers
Pos. 	Driver 	Pts. 	+/-
1 	Alain Prost 	32.5 	
2 	Niki Lauda 	24 	
3 	René Arnoux 	17 	
4 	Elio de Angelis 	16 	1
5 	Derek Warwick 	13 	1
6 	Keke Rosberg 	11.5 	
7 	Michele Alboreto 	9.5 	
8 	Nelson Piquet 	9 	12
9 	Patrick Tambay 	8 	1
10 	Ayrton Senna 	5 	1
11 	Nigel Mansell 	5 	1
12 	Eddie Cheever 	3 	1
13 	Riccardo Patrese 	3 	1
14 	Thierry Boutsen 	3 	1
15 	Andrea de Cesaris 	3 	1
World Championship for Manufacturers	World Championship for Manufacturers	World Championship for Manufacturers	World Championship for Manufacturers
Pos. 	Team 	Pts. 	+/-
1 	 	56.5 	
2 	 	26.5 	
3 	 	21 	
4 	 	21 	
5 	 	11.5 	
6 	 	9 	5
7 	 	6 	1
8 	 	5 	1
9 	 	3 	1
10 	 	3 	1
Only point scoring drivers and constructors are shown.
These standings have been modified to show the Championship as it stood after the retroactive disqualification of the 012 and drivers Martin Brundle and Stefan Bellof.
==References==
Images and Videos:
* F1-history, 'A.Prost | N.Lauda | H.Rothengatter (Canada 1984)', deviantart.com, (DeviantArt, 08/10/2012), https://www.deviantart.com/f1-history/art/A-Prost-N-Lauda-H-Rothengatter-Canada-1984-331387960, (Accessed 05/03/2019)
* F1-history, 'Nigel Mansell (Canada 1984)', deviantart.com, (DeviantArt, 17/09/2012), https://www.deviantart.com/f1-history/art/Nigel-Mansell-Canada-1984-327771822, (Accessed 05/03/2019)
References:
Category:Grand Prix articles
Category:Canadian Grand Prix
Category:1984 Grands Prix