for Alboreto to bring the Tyrrell home over the final nine laps, taking it rather easy since he was too far in front for Rosberg to catch him. Watson, meanwhile, was doing anything but taking it easy, and he set the race's fastest lap (1.6 seconds faster than his qualifying time) while just failing to catch the Williams for second place. Piquet rejoined to finish in fourth, ahead of Laffite in the second Williams and Nigel Mansell's Lotus. Alboreto's teammate, American Danny Sullivan, in his only season of Formula One, retired at the halfway point of the race when his engine failed. His only points for the season came from his fifth place at Monaco, though he did finish second at the non-Championship Race of Champions at Brands Hatch. When Sullivan could not secure a drive with turbo power for 1984, he saw the writing on the wall and returned to the US and the CART Indy Car series. Tyrrell's Michele Alboreto scored his second Grand Prix win and first points of the season. The tight downtown street course took away much of the advantage of the turbocharged cars, and Alboreto's win for Cosworth-Ford was the last of the season's three non-turbo victories. It was also the last for a normally aspirated engine until the turbos were outlawed after the 1988 season, and the last of a record 155 wins for the legendary Cosworth DFV and also the last victory for the Tyrrell team. Classification Qualifying - Driver failed to qualify for the race. Race Championship standings after the race Drivers' Championship standings Constructors' Championship standings Note: Only the top five positions are included for both sets of standings. References Further reading Innes Ireland (October, 1983). "2nd Detroit Grand Prix: Cosworth Counterattack". Road & Track, 162–166. Mike S. Lang (1992). Grand Prix!: Race-by-race account of Formula 1 World Championship motor racing. Volume 4: 1981 to 1984. Haynes Publishing Group. Detroit Grand Prix Detroit Grand Prix Detroit Grand Prix Detroit Grand Prix Detroit Grand Prix